PT-2026-102687 · Joomla · Joomla!

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CVE-2026-90906

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Published

2026-09-29

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Updated

2026-09-29

CVSS v4.0

5.9

Medium

VectorAV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions Joomla! Core versions 1.5.0 through 5.4.8 Joomla! Core versions 6.0.0 through 6.1.3
Description Cross-Site Scripting (XSS) occurs due to a lack of escaping in the link() function of the HTMLHelper class. XSS is a security flaw where malicious scripts are injected into trusted websites.
Recommendations As a temporary workaround, restrict the use of the link() function within the HTMLHelper class until a patch is applied. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

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Weakness Enumeration

Related Identifiers

CVE-2026-90906

Affected Products

Joomla!