Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-6755

Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:26a1163d288d4c3590374f056836819ef1109fa6a4f548553996ec260e81a325
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ec71c1e0045cec001d2d409b097ca5603b024b21da9ebc54e5d588a78e684c7b · sha256:70530d192f2b1eee… · /containers/cna/affected/0

{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ec71c1e0045cec001d2d409b097ca5603b024b21da9ebc54e5d588a78e684c7b · sha256:70530d192f2b1eee… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ec71c1e0045cec001d2d409b097ca5603b024b21da9ebc54e5d588a78e684c7b · sha256:70530d192f2b1eee… · /containers/cna/affected/0
{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"150","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ec71c1e0045cec001d2d409b097ca5603b024b21da9ebc54e5d588a78e684c7b · sha256:70530d192f2b1eee… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ec71c1e0045cec001d2d409b097ca5603b024b21da9ebc54e5d588a78e684c7b · sha256:70530d192f2b1eee… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-352","description":"CWE-352 Cross-Site Request Forgery (CSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ec71c1e0045cec001d2d409b097ca5603b024b21da9ebc54e5d588a78e684c7b · sha256:70530d192f2b1eee… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1880429"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec71c1e0045cec001d2d409b097ca5603b024b21da9ebc54e5d588a78e684c7b · sha256:70530d192f2b1eee… · /containers/cna/references/0
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-30/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec71c1e0045cec001d2d409b097ca5603b024b21da9ebc54e5d588a78e684c7b · sha256:70530d192f2b1eee… · /containers/cna/references/1
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-33/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec71c1e0045cec001d2d409b097ca5603b024b21da9ebc54e5d588a78e684c7b · sha256:70530d192f2b1eee… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer