CVE-2022-40958
MEDIUMFirefox ESR < 102.3, Thunderbird < 102.3, Firefox < 105 - SSRF
Title source: llmDescription
By injecting a cookie with certain special characters, an attacker on a shared subdomain which is not a secure context could set and thus overwrite cookies from a secure context, leading to session fixation and other attacks. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.
References (4)
Core 4
Core References
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1779993
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-40/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-41/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-42/
Scores
CVSS v3
6.5
EPSS
0.0037
EPSS Percentile
59.2%
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
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-74
Status
published
Products (3)
mozilla/firefox
< 105.0
mozilla/firefox_esr
< 102.3
mozilla/thunderbird
< 102.3
Published
Dec 22, 2022
Tracked Since
Feb 18, 2026