CVE-2026-85190 — Joomla Extension - regularlabs.com - Privileged stored XSS via class option in Quick Index extension for Joomla < 5.0…

CVE-2026-85190

Joomla Extension - regularlabs.com - Privileged stored XSS via class option in Quick Index extension for Joomla < 5.0.5 PUBLISHED

Description (CNA)

Joomla Extension - regularlabs.com - Privileged stored XSS via class option in Quick Index extension for Joomla < 5.0.5 - Quick Index inserts configurable class values into generated HTML without escaping them for an HTML attribute. A crafted value can close the intended class attribute and introduce a new attribute. Joomla's content filter cannot reliably prevent this because Quick Index creates the executable HTML after the authored plugin syntax was filtered.

Affected (CNA)

Vendor / product	Versions
regularlabs.com / Quick Index (Free, Pro) extension for Joomla	affected 1.0.0-5.0.4

CWE

CWE-79

References

https://www.regularlabs.com/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.