CVE-2026-21629: medium-severity vulnerability in Joomla! CMS
Joomla! Core - [20260301] - ACL hardening in com_ajax
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.3%
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: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 products
Joomla! Project · Joomla! CMSRelated CVEs — Joomla! CMS
In the same product, most dangerous first.
CVE-2023-23752MEDIUM[20230201] - Core - Improper access check in webservice endpointsEPSS 99.8%KEVCVE-2021-26030—[20210401] - Core - Escape xss in logo parameter error pagesEPSS 82.8%CVE-2021-23124—[20210102] - Core - XSS in mod_breadcrumbs aria-label attributeEPSS 79.0%CVE-2024-21726MEDIUM[20240205] - Core - Inadequate content filtering within the filter codeEPSS 48.8%CVE-2020-35613—[20201104] - Core - SQL injection in com_users list viewEPSS 28.9%CVE-2024-21725MEDIUM[20240204] - Core - XSS in mail address outputsEPSS 26.8%