CVE-2026-21632

EUVD-2026-17859
Lack of output escaping for article titles leads to XSS vectors in various locations.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
joomlajoomla\!
3.0.0 ≤
𝑥
< 5.4.4
joomlajoomla\!
6.0.0 ≤
𝑥
< 6.0.4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://developer.joomla.org/security-centre/1030-20260304-core-xss-vectors-in-various-article-title-outputs.html