CVE-2026-71573: medium-severity vulnerability in Joomla! CMS
Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2
Published · Updated
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 6.9epss 0.3%
Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper implementation prevented configured CORS origins from being properly validated in CORS requests.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L
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 82.3%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-2024-21725MEDIUM[20240204] - Core - XSS in mail address outputsEPSS 32.2%CVE-2020-35613—[20201104] - Core - SQL injection in com_users list viewEPSS 28.9%