CVE-2026-21629
Joomla! Core - [20260301] - ACL hardening in com_ajax
EPSS 0.00%
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.
How to fix CVE-2026-21629
To remediate CVE-2026-21629, upgrade the affected package to a fixed version below.
- Bitnami/joomla—upgrade to 5.4.4 or later
Is CVE-2026-21629 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 3.0.0, < 5.4.4, >= 6.0.0, < 6.0.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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/E:X/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 |