CVE-2025-4089

Due to insufficient escaping of special characters 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 vulnerability was fixed in Firefox 138 and Thunderbird 138.

Score

CVSS 3.1 5.1 Medium

Status

Modified - security@mozilla.org

Published

2025-04-29

Last modified

2026-04-13

Weaknesses

CWE-77

Affected products

• Firefox (Mozilla)
• Thunderbird (Mozilla)

References

• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1949994%2C1956698%2C1960198
• https://www.mozilla.org/security/advisories/mfsa2025-28/
• https://www.mozilla.org/security/advisories/mfsa2025-31/