CVE-2025-5266 — Script element events leaked cross-origin resource status
Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. This vulnerability was fixed in Firefox 139, F…
Published: 2025-05-27 · CVSS: 4.3 · CVSS 3.1
Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. This vulnerability was fixed in Firefox 139, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7