CVE-2022-22761

Mozilla: frame-ancestors Content Security Policy directive was not enforced for framed extension pages

Published Dec 22, 2022 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Web-accessible extension pages (pages with a moz-extension:// scheme) were not correctly enforcing the frame-ancestors directive when it was used in the Web Extension's Content Security Policy. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2916-1 firefox-esr security update
Debian DLA Debian DLA DLA-2921-1 thunderbird security update
Debian DSA Debian DSA DSA-5069-1 firefox-esr security update
Debian DSA Debian DSA DSA-5074-1 thunderbird security update
EUVD EUVD EUVD-2022-27904 Web-accessible extension pages (pages with a moz-extension:// scheme) were not correctly enforcing the frame-ancestors directive when it was used in the Web Extension's Content Security Policy. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.
Ubuntu USN Ubuntu USN USN-5284-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5345-1 Thunderbird vulnerabilities
History
Type Values Removed Values Added
Weaknesses CWE-693
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Apr 16, 2025, 2:33 PM
Reserved
Jan 7, 2022, 12:00 AM
Status
Modified
Published
Dec 22, 2022, 8:15 PM
Modified
Jun 17, 2026, 4:28 AM
Severity
Moderate
Public date
Feb 8, 2022, 12:00 AM