Security - https://powerbi.com BeaverCheck Audit

F

Subresource Integrity

Action

0 of 20 external resources have SRI

FIX

0 of 20 external resources have SRI

External script from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/scripts/DefaultSignIn.min.a5f48a15153486582dc6.js

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/styleLibrary.min.6e14a89aa6fa6d5a8710.css

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/powerbi.common.externals.min.45febe62502627ae464d.css

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/powerbi.web.externals.min.3ff78e9b733c085e20a3.css

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/infonav.common.min.8d74319404f0750f660b.css

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/powerbicommon.min.16666700de75f30f2c64.css

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/powerBIProvidersCommon.min.000a70741198babfab37.css

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/powerbi.min.fa9c7d1d1d282ae895ee.css

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/explorationContainer.min.62610109eb1456622cd2.css

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/visuals.min.7136768665110f50178d.css

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/powerBIProvidersCommon.min.000a70741198babfab37.css

External script from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/scripts/polyfills.min.df3aa0f48485141665ae.js

External script from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/scripts/lodash.bundle.min.2b1f0e32f6fc79e94cdd.js

External script from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/scripts/jquery.globalize/globalize.min.c64f544570ca82c93ed3.js

External script from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/scripts/jquery.globalize/globalize.culture.en-US.4f22df3a747a4b08eecd.js

External script from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/scripts/powerbiportal.externals.bundle.min.82bb7f5ead3b12509d70.js

External script from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/scripts/stylelibrary.min.c2e9e31cc34def41737d.js

External script from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/scripts/telemetry.bundle.min.3eccc104bef906fbeb17.js

External script from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/scripts/powerBISignOn.min.0e28e1c135c5c14929fb.js

External link from content.powerapps.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://content.powerapps.com/resource/powerbiwfe/styles/powerbiportal.bundle.min.fee009f931bb567f1b50.css

SRI Coverage 0 / 20 of external resources have integrity hashes

Tag	Domain	Integrity
<script>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing
<script>	content.powerapps.com	✗ Missing
<script>	content.powerapps.com	✗ Missing
<script>	content.powerapps.com	✗ Missing
<script>	content.powerapps.com	✗ Missing
<script>	content.powerapps.com	✗ Missing
<script>	content.powerapps.com	✗ Missing
<script>	content.powerapps.com	✗ Missing
<script>	content.powerapps.com	✗ Missing
<link>	content.powerapps.com	✗ Missing

D

Permissions-Policy

Action

No header set

FIX

No header set

No Permissions-Policy header

Consider adding a Permissions-Policy header to restrict browser feature access from embedded content.

No Permissions-Policy header set.

Without this header, embedded iframes can request access to sensitive device features.

Suggested header

Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=(), usb=()

C

Security Headers

Action

6 of 10 headers properly configured

REVIEW

6 of 10 headers properly configured

Strict-Transport-Security is properly configured (consider adding preload)

Got: max-age=31536000; includeSubDomains

X-Content-Type-Options is properly configured

Got: nosniff

X-Frame-Options is properly configured

Got: deny

Referrer-Policy header is missing

Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter.

Expected: strict-origin-when-cross-origin

Permissions-Policy header is missing

Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features.

Expected: geolocation=(), camera=(), microphone=()

Content-Security-Policy is present

Got: frame-ancestors https://teams.powerbi.com 'self' https://res-sdf.cdn.office.net …

Cross-Origin-Opener-Policy header is missing

COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'.

Expected: same-origin

Cross-Origin-Embedder-Policy header is missing

COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers.

Expected: require-corp

X-Powered-By header is not present

Server header is not present

Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter.

Expected: strict-origin-when-cross-origin

Why this matters

Default browser behavior leaks full URLs (including query params and tokens) to every third-party resource — set a strict policy.

Learn more ▾

Without a Referrer-Policy header, browsers send the full referring URL with images, scripts, and fonts loaded from third-party origins. URLs containing tokens, user IDs, or session params end up in third-party logs. Set `Referrer-Policy: strict-origin-when-cross-origin` (or stricter) to limit leakage.

Source: MDN / W3C

Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features.

Expected: geolocation=(), camera=(), microphone=()

Why this matters

Permissions-Policy locks down browser APIs you don't use — without it, every page can request camera/mic/geolocation if XSS lands.

Learn more ▾

By default every page can request the camera, microphone, geolocation, payment APIs, and dozens more. Permissions-Policy turns off the ones you don't need so a future bug can't quietly start using them. It's a defense-in-depth header — one line, big surface reduction.

Source: MDN / W3C

COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'.

Expected: same-origin

Why this matters

COOP isolates your top-level browsing context from cross-origin windows — without it, popup-based side-channel attacks remain possible.

Learn more ▾

Cross-Origin-Opener-Policy: same-origin prevents cross-origin pages from sharing a browsing-context group with yours. This blocks cross-window references that enable Spectre-style timing attacks and tab-nabbing. Required if you want to enable SharedArrayBuffer.

Source: MDN / web.dev

COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers.

Expected: require-corp

Why this matters

COEP enforces that all embedded resources opt-in to cross-origin embedding — required for cross-origin isolation features.

Learn more ▾

Cross-Origin-Embedder-Policy: require-corp ensures every embedded resource (script, iframe, image) explicitly allows being loaded cross-origin. Combined with COOP, this enables the cross-origin-isolated context that unlocks SharedArrayBuffer, high-resolution timers, and other powerful APIs.

Source: MDN / web.dev

B

Content Security Policy

2 of 10 CSP checks passed

REVIEW

2 of 10 CSP checks passed

Raw CSP policy

Got: frame-ancestors https://teams.powerbi.com 'self' https://res-sdf.cdn.office.net https://res.cdn.office.net https://mesh.public.onecdn.static.microsoft https://m365.cloud.microsoft https://outlook.cloud.microsoft https://teams.cloud.microsoft https://teams.microsoft.com https://gov.teams.microsoft.us https://dod.teams.microsoft.us https://teams.microsoftonline.cn https://outlook.office.com https://outlook-sdf.office.com https://outlook.office365.com https://outlook-sdf.office365.com https://www.office.com https://scuprodprv.www.office.com https://www.microsoft365.com https://local.loop.microsoft.com https://dev.loop.microsoft.com https://df.loop.microsoft.com https://loop.microsoft.com

default-src directive is missing

default-src provides a fallback for other directives. Set it to restrict default resource loading.

Expected: default-src 'self'

No script-src or default-src to check for 'unsafe-inline'

No script-src or default-src to check for 'unsafe-eval'

No script-src or default-src to check for wildcard

object-src falls back to default-src

base-uri directive is missing

Without base-uri, attackers can inject a <base> tag to hijack relative URLs. Set it to 'self' or 'none'.

Expected: base-uri 'self'

frame-ancestors directive is set

Got: frame-ancestors https://teams.powerbi.com 'self' https://res-sdf.cdn.office.net https://res.cdn.office.net https://mesh.public.onecdn.static.microsoft https://m365.cloud.microsoft https://outlook.cloud.microsoft https://teams.cloud.microsoft https://teams.microsoft.com https://gov.teams.microsoft.us https://dod.teams.microsoft.us https://teams.microsoftonline.cn https://outlook.office.com https://outlook-sdf.office.com https://outlook.office365.com https://outlook-sdf.office365.com https://www.office.com https://scuprodprv.www.office.com https://www.microsoft365.com https://local.loop.microsoft.com https://dev.loop.microsoft.com https://df.loop.microsoft.com https://loop.microsoft.com

form-action directive is missing

form-action restricts where forms can submit data, preventing form hijacking.

Expected: form-action 'self'

upgrade-insecure-requests is not set

This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.

Expected: upgrade-insecure-requests

default-src provides a fallback for other directives. Set it to restrict default resource loading.

Expected: default-src 'self'

Why this matters

Security gaps expose your site and users to attacks, eroding trust.

Without base-uri, attackers can inject a <base> tag to hijack relative URLs. Set it to 'self' or 'none'.

Expected: base-uri 'self'

Why this matters

Missing base-uri in CSP leaves a base-tag injection attack path open even on otherwise strict policies.

Learn more ▾

A common omission: developers add CSP for script-src and frame-ancestors but forget base-uri. The result is a CSP that looks strict but lets an attacker rewrite every URL on the page via <base href>. Add `base-uri 'self'` to close the gap.

Source: MDN CSP

form-action restricts where forms can submit data, preventing form hijacking.

Expected: form-action 'self'

Why this matters

Security gaps expose your site and users to attacks, eroding trust.

This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.

Expected: upgrade-insecure-requests

Why this matters

Without upgrade-insecure-requests, any HTTP subresource link survives as a mixed-content warning instead of auto-upgrading.

Learn more ▾

Adding `upgrade-insecure-requests` to your CSP turns every http:// subresource fetch into https:// at the browser layer. One-line defense against accidental mixed content from legacy links or third-party widgets.

Source: MDN CSP

Parsed Policy

frame-ancestors https://teams.powerbi.com'self'https://res-sdf.cdn.office.nethttps://res.cdn.office.nethttps://mesh.public.onecdn.static.microsofthttps://m365.cloud.microsofthttps://outlook.cloud.microsofthttps://teams.cloud.microsofthttps://teams.microsoft.comhttps://gov.teams.microsoft.ushttps://dod.teams.microsoft.ushttps://teams.microsoftonline.cnhttps://outlook.office.comhttps://outlook-sdf.office.comhttps://outlook.office365.comhttps://outlook-sdf.office365.comhttps://www.office.comhttps://scuprodprv.www.office.comhttps://www.microsoft365.comhttps://local.loop.microsoft.comhttps://dev.loop.microsoft.comhttps://df.loop.microsoft.comhttps://loop.microsoft.com

B

security.txt

Published with 0 contact(s)

REVIEW

security.txt

A+

TLS & Certificates

TLS 1.3, 7 checks passed

PASS

TLS 1.3, 7 checks passed

TLS 1.3 is used

Got: TLS 1.3

Strong cipher suite is used

Got: TLS_AES_256_GCM_SHA384

HTTP/2 is not negotiated

HTTP/2 provides multiplexing and header compression for better performance.

Got: http/1.1

Certificate is valid (expires in 107 days)

Got: 2026-08-07T00:23:41Z

Certificate chain has 2 certificates

Certificate uses modern signature algorithm

Got: SHA384-RSA

Certificate covers 11 domain(s)

Got: powerbi.com, *.powerbi.com, prod.cdn.powerbi.com, msit.cdn.powerbi.com, dxt.cdn.powerbi.com, app.pbiwebcontent.com, msit.pbiwebcontent.com, dxt.pbiwebcontent.com, app.fabric.microsoft.com, fabric.microsoft.com, sparkui.fabric.microsoft.com

Certificate is issued by a trusted CA

Got: CN=Microsoft Azure RSA TLS Issuing CA 04,O=Microsoft Corporation,C=US

HTTP/2 provides multiplexing and header compression for better performance.

Why this matters

HTTP/1.1 forces the browser to make sequential requests, multiplying latency on every page.

Learn more ▾

HTTP/2 (and HTTP/3) multiplex many requests over a single connection, eliminating head-of-line blocking. HTTP/1.1 forces the browser to either queue requests or open many parallel connections — both worse. Most modern web servers support HTTP/2 with one config line.

Source: MDN Web Docs

Connection

Protocol

TLS 1.3

Cipher Suite

TLS_AES_256_GCM_SHA384

HTTP Version

HTTP/1.1

Certificate Chain

Leaf Certificate

Subject CN=powerbi.com,O=Microsoft Corporation,L=Redmond,ST=WA,C=USIssuer CN=Microsoft Azure RSA TLS Issuing CA 04,O=Microsoft Corporation,C=USValid 2026-02-08T00:23:41Z → 2026-08-07T00:23:41ZExpires in 107 days SANs powerbi.com, *.powerbi.com, prod.cdn.powerbi.com, msit.cdn.powerbi.com, dxt.cdn.powerbi.com, app.pbiwebcontent.com, msit.pbiwebcontent.com, dxt.pbiwebcontent.com, app.fabric.microsoft.com, fabric.microsoft.com, sparkui.fabric.microsoft.comSignature SHA384-RSASerial 33038317b7c5a1dcedfa3f578a0000038317b7

Intermediate (CA Certificate)

Subject CN=Microsoft Azure RSA TLS Issuing CA 04,O=Microsoft Corporation,C=USIssuer CN=DigiCert Global Root G2,OU=www.digicert.com,O=DigiCert Inc,C=USValid 2023-06-08T00:00:00Z → 2026-08-25T23:59:59ZExpires in 126 days Signature SHA384-RSASerial 9f96ec295555f24749eaf1e5dced49d

A+

Cookie Security

2 cookies analyzed, 5 checks passed

PASS

2 cookies analyzed, 5 checks passed

Cookie 'ARRAffinity' has the Secure flag

Cookie 'ARRAffinity' has the HttpOnly flag

Cookie 'ARRAffinity' has no SameSite attribute

Without an explicit SameSite attribute, browser default behavior varies. Set SameSite=Lax or Strict.

Cookie 'ARRAffinitySameSite' has the Secure flag

Cookie 'ARRAffinitySameSite' has the HttpOnly flag

Cookie 'ARRAffinitySameSite' has SameSite=None

2 cookies analyzed 1 warnings

Name	Secure	HttpOnly	SameSite	Size	Issues
ARRAffinity	✓	✓	—	75 B	1
ARRAffinitySameSite	✓	✓	None	83 B	—

A+

JS Library Vulnerabilities

No known vulnerabilities

PASS

No known vulnerabilities

No known JavaScript library vulnerabilities detected

No known JavaScript library vulnerabilities detected.

A+

Information Leakage

No exposures

PASS

No exposures

security.txt is present — good practice

No sensitive files exposed

No sensitive files exposed — all paths returned 404.

Path	Status	Category	Risk
/.git/HEAD	✓ Not found	Version Control	—
/.git/config	✓ Not found	Version Control	—
/.svn/entries	✓ Not found	Version Control	—
/.env	✓ Not found	Configuration	—
/.env.local	✓ Not found	Configuration	—
/.env.production	✓ Not found	Configuration	—
/wp-config.php	✓ Not found	Configuration	—
/.htaccess	✓ Not found	Configuration	—
/phpinfo.php	✓ Not found	Debug	—
/server-status	✓ Not found	Debug	—
/server-info	✓ Not found	Debug	—
/.well-known/security.txt	✗ Exposed	Security Policy	Info

A+

Email Security

DMARC: reject

PASS

DMARC: reject

DMARC policy is reject — strongest protection

DMARC

Policy reject — strongest protection Record v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s

A

CORS Configuration

Origin: https://teams.powerbi.com

PASS

Origin: https://teams.powerbi.com

CORS restricted to specific origin(s)

Got: https://teams.powerbi.com

Origin reflection not testable with a single request

Some servers reflect the request Origin header. This requires manual testing with a crafted Origin header.

CORS Configuration ✓ Well Configured

Allow-Origin https://teams.powerbi.com

Header	Value	Status
Access-Control-Allow-Origin	https://teams.powerbi.com	✓

Origin reflection test

Some servers mirror the request Origin header, which can be exploited. Test manually:

curl -sI -H "Origin: https://evil.com" <url> | grep -i access-control

A

Transport Security

HTTP/3, HSTS, and TLS version analysis

PASS

HTTP/3, HSTS, and TLS version analysis

HTTP/3 (QUIC) not advertised

HTTP/3 eliminates head-of-line blocking. If your CDN supports it, consider enabling it.

HSTS enabled (includeSubDomains)

TLS 1.3 in use (fastest handshake, 1-RTT)