Vulnerability Monitor

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CVE-2022-40956

When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Published

2022-12-22T20:15:38.693

Last Modified

2025-04-15T17:15:36.973

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.1 (MEDIUM)

Weaknesses

Type: Primary
CWE-79
Type: Secondary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	< 105.0	Yes
Application	mozilla	firefox_esr	< 102.3	Yes
Application	mozilla	thunderbird	< 102.3	Yes

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1770094 Issue Tracking, Permissions Required, Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2022-40/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2022-41/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2022-42/ Vendor Advisory ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=1770094 Issue Tracking, Permissions Required, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2022-40/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2022-41/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2022-42/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)