Unrated severityNVD Advisory· Published May 26, 2021· Updated Feb 25, 2026
[20210501] - Core - Adding HTML to the executable block list of MediaHelper::canUpload
CVE-2021-26032
Description
An issue was discovered in Joomla! 3.0.0 through 3.9.26. HTML was missing in the executable block list of MediaHelper::canUpload, leading to XSS attack vectors.
Affected products
1- Range: 3.0.0-3.9.26
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- developer.joomla.org/security-centre/852-20210501-core-adding-html-to-the-executable-block-list-of-mediahelper-canupload.htmlmitrex_refsource_MISCvendor-advisory
News mentions
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