PT-2026-29504 · Joomla · Joomla! Cms

Peterhulst · Published 2026-04-01 · Updated 2026-04-01 · CVE-2026-21632

NVD

CVSS v4.0

5.9

Medium

AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Lack of output escaping for article titles leads to XSS vectors in various locations.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-21632

Affected Products

Joomla! Cms

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-21632 · Security Note
• https://developer.joomla.org/security-centre/1030-20260304-core-xss-vectors-in-various-article-title-outputs.html · Vendor Advisory