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.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3121-1 firefox-esr security update
Debian DLA Debian DLA DLA-3123-1 thunderbird security update
Debian DSA Debian DSA DSA-5237-1 firefox-esr security update
Debian DSA Debian DSA DSA-5238-1 thunderbird security update
EUVD EUVD EUVD-2022-44202 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.
Ubuntu USN Ubuntu USN USN-5649-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5724-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 15 Apr 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-04-15T16:11:04.593Z

Reserved: 2022-09-19T00:00:00.000Z

Link: CVE-2022-40956

cve-icon Vulnrichment

Updated: 2024-08-03T12:28:43.077Z

cve-icon NVD

Status : Modified

Published: 2022-12-22T20:15:38.693

Modified: 2025-04-15T17:15:36.973

Link: CVE-2022-40956

cve-icon Redhat

Severity : Low

Publid Date: 2022-09-20T00:00:00Z

Links: CVE-2022-40956 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses