CVE-2026-92232

EUVD-2026-89073
Joomla! Core - [20260916] - Core - XSS filter bypass in InputFilter via whitespace characters in HTML data URIs in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - The cleanAttribute method removes HTML data URIs, however injected whitespaces characters could circumvent that cleanup, causing an XSS vector.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 15.45%
Affected Products (NVD)
VendorProductVersion
joomlajoomla\!
1.5.0 ≤
𝑥
< 5.4.8
joomlajoomla\!
6.0.0 ≤
𝑥
< 6.1.3
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://developer.joomla.org/security-centre/1096-20260916-core-xss-filter-bypass-in-inputfilter-via-whitespace-characters-in-html-data-uris.html
https://www.joomla.org/