CVE-2022-31744
MEDIUMFirefox < 101.0 and Firefox ESR < 91.11 - Cross-Site Scripting via CSS Injection in Internal URI Stylesheets
Title source: llmDescription
An attacker could have injected CSS into stylesheets accessible via internal URIs, such as resource:, and in doing so bypass a page's Content Security Policy. This vulnerability affects Firefox ESR < 91.11, Thunderbird < 102, Thunderbird < 91.11, and Firefox < 101.
References (4)
Core 4
Core References
Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1757604
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-20/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-25/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-26/
Scores
CVSS v3
6.5
EPSS
0.0008
EPSS Percentile
23.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (3)
mozilla/firefox
< 101.0
mozilla/firefox_esr
< 91.11
mozilla/thunderbird
< 91.11
Published
Dec 22, 2022
Tracked Since
Feb 18, 2026