Domain History

www.bankofamerica.com

Grade F · 0/100 · 2/7 security headers present

Security Score

0/ 100

Security Headers

2/ 7

CSP Violations

NoViolations

Issues Found

36Issues

Recommendations

8Available

Security

0 / 100

Critical security vulnerabilities — CSP provides minimal protection.

Compliance

46 / 100

Major compliance issues — missing critical directives and headers.

Best Practices

25 / 100

Best practices largely absent — review CSP configuration.

CSP Analysis

Content Security PolicyHIGH

default-src 'self' *.bankofamerica.com *.bac-assets.com *.ml.com https: wss: data: blob:; script-src 'self' *.bankofamerica.com *.bac-assets.com *.ml.com fsa.merrilledge.com merrilledge.com s3.amazonaws.com boa-api.arkoselabs.com cdn.cookielaw.org resources.digital-cloud.medallia.com players.brightcove.net metrics.brightcove.com cdnapisec.kaltura.com tags.tiqcdn.com akamai.tiqcdn.com glance.net beta.glancecdn.net storage.glancecdn.net cct.google cdn.mplxtms.com cdn.tt.omtrdc.net data.cmcore.com data.coremetrics.com iocdn.coremetrics.com libs.coremetrics.com mc.coremetrics.com mcdata.coremetrics.com mktgcdn.coremetrics.com recs.coremetrics.com secure-cdn.mplxtms.com convertro.com stage.convertro.com idsync.rlcdn.com test.coremetrics.com testdata.coremetrics.com tmscdn.coremetrics.com glancecdn.net www.glancecdn.net www.google-analytics.com maps.googleapis.com www.googletagmanager.com mboxedge34.tt.omtrdc.net anrdoezrs.net cj.dotomi.com cj.com cj.mplxtms.com emjcd.com mczbf.com sjwoe.com secure-cdn.mplxtms.com cdn.mplxtms.com bofa.demdex.net cdnstorage.myglance.net bankofamerica.tt.omtrdc.net www.paypalobjects.com cdn-bofa.myglance.net six.cdn-net.com vjs.zencdn.net 'unsafe-inline' 'unsafe-eval' blob:; style-src 'self' data: blob: *.bankofamerica.com *.bac-assets.com *.ml.com cdn.cookielaw.org glance.net beta.glancecdn.net storage.glancecdn.net convertro.com stage.convertro.com idsync.rlcdn.com glancecdn.net www.glancecdn.net cdnstorage.myglance.net www.google-analytics.com cdn-bofa.myglance.net resources.digital-cloud.medallia.com 'unsafe-inline'; worker-src 'self' blob:; frame-ancestors 'self' *.bankofamerica.com *.ml.com *.merrilledge.com;

Directive Analysis

default-srcHIGH

self *.bankofamerica.com *.bac-assets.com *.ml.com https: wss: data: blob:

•Subdomain wildcard '*.bankofamerica.com' in default-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.bac-assets.com' in default-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.ml.com' in default-src - vulnerable to subdomain takeover

•CRITICAL: 'https:' in default-src allows scripts from ANY HTTPS domain

•CRITICAL: 'data:' URI in default-src allows arbitrary JavaScript execution

•HIGH RISK: 'blob:' URI in default-src allows script execution from dynamic blobs

script-srcHIGH

self *.bankofamerica.com *.bac-assets.com *.ml.com fsa.merrilledge.com merrilledge.com s3.amazonaws.com boa-api.arkoselabs.com cdn.cookielaw.org resources.digital-cloud.medallia.com players.brightcove.net metrics.brightcove.com cdnapisec.kaltura.com tags.tiqcdn.com akamai.tiqcdn.com glance.net beta.glancecdn.net storage.glancecdn.net cct.google cdn.mplxtms.com cdn.tt.omtrdc.net data.cmcore.com data.coremetrics.com iocdn.coremetrics.com libs.coremetrics.com mc.coremetrics.com mcdata.coremetrics.com mktgcdn.coremetrics.com recs.coremetrics.com secure-cdn.mplxtms.com convertro.com stage.convertro.com idsync.rlcdn.com test.coremetrics.com testdata.coremetrics.com tmscdn.coremetrics.com glancecdn.net www.glancecdn.net www.google-analytics.com maps.googleapis.com www.googletagmanager.com mboxedge34.tt.omtrdc.net anrdoezrs.net cj.dotomi.com cj.com cj.mplxtms.com emjcd.com mczbf.com sjwoe.com secure-cdn.mplxtms.com cdn.mplxtms.com bofa.demdex.net cdnstorage.myglance.net bankofamerica.tt.omtrdc.net www.paypalobjects.com cdn-bofa.myglance.net six.cdn-net.com vjs.zencdn.net unsafe-inline unsafe-eval blob:

•Duplicate value 'secure-cdn.mplxtms.com' in script-src directive

•Duplicate value 'cdn.mplxtms.com' in script-src directive

•Subdomain wildcard '*.bankofamerica.com' in script-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.bac-assets.com' in script-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.ml.com' in script-src - vulnerable to subdomain takeover

•Unsafe inline execution allowed in script-src

•Unsafe eval() execution allowed in script-src

•HIGH RISK: 'blob:' URI in script-src allows script execution from dynamic blobs

•No nonces or hashes used for script-src

style-srcHIGH

self data: blob: *.bankofamerica.com *.bac-assets.com *.ml.com cdn.cookielaw.org glance.net beta.glancecdn.net storage.glancecdn.net convertro.com stage.convertro.com idsync.rlcdn.com glancecdn.net www.glancecdn.net cdnstorage.myglance.net www.google-analytics.com cdn-bofa.myglance.net resources.digital-cloud.medallia.com unsafe-inline

•Info: 'data:' URI in style-src

•Info: 'blob:' URI in style-src

•Subdomain wildcard '*.bankofamerica.com' in style-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.bac-assets.com' in style-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.ml.com' in style-src - vulnerable to subdomain takeover

•Unsafe inline execution allowed in style-src

worker-srcMEDIUM

self blob:

•Info: 'blob:' URI in worker-src

•RISK: 'blob:' in worker-src allows creation of workers from dynamic blob content

frame-ancestorsHIGH

self *.bankofamerica.com *.ml.com *.merrilledge.com

•Subdomain wildcard '*.bankofamerica.com' in frame-ancestors - vulnerable to subdomain takeover

•Subdomain wildcard '*.ml.com' in frame-ancestors - vulnerable to subdomain takeover

•Subdomain wildcard '*.merrilledge.com' in frame-ancestors - vulnerable to subdomain takeover

Missing Directives

⚠HIGHMissing HIGH directive object-src (Plugin control - should be 'none')

⚠HIGHMissing HIGH directive base-uri (Base URI control - prevents base tag injection)

⚠MEDIUMMissing MEDIUM directive form-action (Form submission control - prevents form hijacking)

⚠MEDIUMMissing MEDIUM directive connect-src (API/XHR control - prevents data exfiltration)

⚠MEDIUMMissing MEDIUM directive img-src (Image source control)

⚠MEDIUMMissing MEDIUM directive font-src (Font source control)

Security Headers

✗Cross-Origin-Opener-PolicyMissing

Isolates the browsing context to prevent Spectre-type side-channel attacks and cross-origin window manipulation.

How to add it:

nginx

add_header Cross-Origin-Opener-Policy "same-origin" always;

apache

Header always set Cross-Origin-Opener-Policy "same-origin"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set Cross-Origin-Opener-Policy to "same-origin"

✗Permissions-PolicyMissing

Restricts which browser features (camera, microphone, geolocation) the page can use, limiting attack surface.

How to add it:

nginx

add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;

apache

Header always set Permissions-Policy "camera=(), microphone=(), geolocation=()"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set Permissions-Policy value

✗Referrer-PolicyMissing

Controls how much referrer information is sent with requests, preventing data leaks to third parties.

How to add it:

nginx

add_header Referrer-Policy "strict-origin-when-cross-origin" always;

apache

Header always set Referrer-Policy "strict-origin-when-cross-origin"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set Referrer-Policy to "strict-origin-when-cross-origin"

✓Strict-Transport-SecurityPresent

max-age=31536000; includeSubDomains

Forces browsers to use HTTPS for all future requests, preventing man-in-the-middle attacks and SSL stripping.

✗X-Content-Type-OptionsMissing

Prevents browsers from MIME-sniffing responses away from the declared Content-Type, blocking drive-by downloads.

How to add it:

nginx

add_header X-Content-Type-Options "nosniff" always;

apache

Header always set X-Content-Type-Options "nosniff"

cloudflare

Rules > Transform Rules > Managed Transforms > Enable "Add X-Content-Type-Options header"

✓X-Frame-OptionsPresent

SAMEORIGIN

Prevents the page from being embedded in iframes, protecting against clickjacking attacks.

—X-XSS-ProtectionDeprecated

Legacy XSS filter for older browsers. Modern browsers use CSP instead. Set to "0" to avoid false positives.

4 recommended security headers are missing on www.bankofamerica.com.

Issues Found

•CRITICAL: 'data:' URI in default-src allows arbitrary JavaScript executioncritical
•CRITICAL: 'https:' in default-src allows scripts from ANY HTTPS domaincritical
•Duplicate value 'cdn.mplxtms.com' in script-src directiveinfo
•Duplicate value 'secure-cdn.mplxtms.com' in script-src directiveinfo
•HIGH RISK: 'blob:' URI in default-src allows script execution from dynamic blobshigh
•HIGH RISK: 'blob:' URI in script-src allows script execution from dynamic blobshigh
•Info: 'blob:' URI in style-srcinfo
•Info: 'blob:' URI in worker-srcinfo
•Info: 'data:' URI in style-srcinfo
•Missing HIGH directive base-uri (Base URI control - prevents base tag injection)high
•Missing HIGH directive object-src (Plugin control - should be 'none')high
•Missing MEDIUM directive connect-src (API/XHR control - prevents data exfiltration)medium
•Missing MEDIUM directive font-src (Font source control)medium
•Missing MEDIUM directive form-action (Form submission control - prevents form hijacking)medium
•Missing MEDIUM directive img-src (Image source control)medium
•Missing security header: Cross-Origin-Opener-Policymedium
•Missing security header: Permissions-Policymedium
•Missing security header: Referrer-Policymedium
•Missing security header: X-Content-Type-Optionsmedium
•No nonces or hashes used for script-srcmedium
•RISK: 'blob:' in worker-src allows creation of workers from dynamic blob contentmedium
•Subdomain wildcard '*.bac-assets.com' in default-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.bac-assets.com' in script-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.bac-assets.com' in style-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.bankofamerica.com' in default-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.bankofamerica.com' in frame-ancestors - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.bankofamerica.com' in script-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.bankofamerica.com' in style-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.merrilledge.com' in frame-ancestors - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.ml.com' in default-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.ml.com' in frame-ancestors - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.ml.com' in script-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.ml.com' in style-src - vulnerable to subdomain takeovermedium
•Unsafe eval() execution allowed in script-srchigh
•Unsafe inline execution allowed in script-srchigh
•Unsafe inline execution allowed in style-srchigh

Recommendations

→Add base-uri directive with appropriate restrictions
→Add connect-src directive with appropriate restrictions
→Add font-src directive with appropriate restrictions
→Add form-action directive with appropriate restrictions
→Add img-src directive with appropriate restrictions
→Add object-src directive with appropriate restrictions
→Consider implementing a stricter Content Security Policy
→Replace wildcards (*) with specific source lists

Beyond headers: infrastructure exposure

via OSN, our sister project

Security headers protect the browser. OSN maps what's exposed underneath — servers, open ports, known CVEs, DNS and WHOIS.

See what the internet sees about www.bankofamerica.comWeak headers often come with other exposure — check the full picture.

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