VULNERABILITY INTELLIGENCE

CVE-2025-5263

CVSS score4.3 MEDIUM
EPSS probability0.27%
CISA KEVNot currently listed
Published2025-05-27
Last modified2026-10-05
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Description

Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. This vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.

Weakness classification

  • CWE-346: Origin Validation Error

Primary references