VulnerabilityModified
CVE-2025-5264
Due to insufficient escaping of the newline 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.
MEDIUM 4.8EPSS 0.29%
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
Description
Due to insufficient escaping of the newline 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 vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.
- CVSS 3.1
- 4.8 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
- EPSS
- 0.29% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-77
- Affected
- mozilla/firefox
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1950001Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-42/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-43/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-44/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-45/
- https://www.mozilla.org/security/advisories/mfsa2025-46/
- https://lists.debian.org/debian-lts-announce/2025/05/msg00043.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00046.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.