After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
Fix
Patch, vendor advisory and mitigation references on NVD 8
- https://bugzilla.mozilla.org/show_bug.cgi?id=1784451 Exploit, Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-05/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-07/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1784451 Exploit, Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-05/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-07/ 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 8.1 · 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 14
- https://bugzilla.mozilla.org/show_bug.cgi?id=1784451 Exploit, Issue Tracking, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1809923 Issue Tracking, Permissions Required
- https://bugzilla.mozilla.org/show_bug.cgi?id=1810143 Issue Tracking, Permissions Required
- https://bugzilla.mozilla.org/show_bug.cgi?id=1812338 Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-05/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-07/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1784451 Exploit, Issue Tracking, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1809923 Issue Tracking, Permissions Required
- https://bugzilla.mozilla.org/show_bug.cgi?id=1810143 Issue Tracking, Permissions Required
- https://bugzilla.mozilla.org/show_bug.cgi?id=1812338 Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-05/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-07/ Vendor Advisory