CVE-2022-40958

CVSS 6.5 MEDIUMEPSS 1.1%CWE-74

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1779993 https://www.mozilla.org/security/advisories/mfsa2022-40/https://www.mozilla.org/security/advisories/mfsa2022-41/https://www.mozilla.org/security/advisories/mfsa2022-42/