Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames containing environment variable names would have resolved those in the context of the current user. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
Fix
Patch, vendor advisory and mitigation references on NVD 6
- https://www.mozilla.org/security/advisories/mfsa2023-13/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-14/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-15/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-13/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-14/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-15/ Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.5 · mozillaNVD modified 2026-10-24 13:10
Affected (CPE criteria) 3
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
References 8
- https://bugzilla.mozilla.org/show_bug.cgi?id=1823077 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-13/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-14/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-15/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1823077 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-13/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-14/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-15/ Vendor Advisory