CVE-2026-21629 — Improper Access Control in Joomla !

CWE-284 — Improper Access Control4 documents4 sources
Severity
6.3MEDIUMNVD
EPSS
0.0%
top 99.99%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Joomla !Joomla! Project Joomla! CMS
Timeline
PublishedApr 1

Description

The ajax component was excluded from the default logged-in-user check in the administrative area. This behavior was potentially unexpected by 3rd party developers.

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Affected Packages2 packages

▶NVDjoomla/joomla_!3.0.0 — 5.4.4+1
▶CVEListV5joomla!_project/joomla!_cms3.0.0-5.4.3, 6.0.0-6.0.3+1

🔴Vulnerability Details

2
GHSA
GHSA-cvwg-67gg-j4gg: The ajax component was excluded from the default logged-in-user check in the administrative area↗2026-04-01
▶
CVEList
Joomla! Core - [20260301] - ACL hardening in com_ajax↗2026-04-01
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-21629 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-21629 — Improper Access Control in Joomla ! | cvebase