CVE-2025-5265

Description

Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. *This bug only affects Firefox for Windows. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.

PUBLISHED Reserved 2025-05-27 | Published 2025-05-27 | Updated 2026-04-13 | Assigner mozilla

Product status

Credits

Ameen Basha M K

References

bugzilla.mozilla.org/show_bug.cgi?id=1962301

www.mozilla.org/security/advisories/mfsa2025-42/

www.mozilla.org/security/advisories/mfsa2025-43/

www.mozilla.org/security/advisories/mfsa2025-44/

www.mozilla.org/security/advisories/mfsa2025-45/

www.mozilla.org/security/advisories/mfsa2025-46/

cve.org (CVE-2025-5265)

nvd.nist.gov (CVE-2025-5265)

Download JSON