Joomla! Core - [20260912] - Core - XSS in module list in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - The module list layout did not properly escape user supplied values, leading to an XSS vector.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-89075
https://developer.joomla.org/security-centre/1092-20260912-core-xss-in-module-list.html
Published: 2026-09-29
Updated: 2026-10-06
Base Score: 8
Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:P
Severity: High
Base Score: 6.7
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
Severity: Medium
Base Score: 8.4
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Severity: High
EPSS: 0.00266