Quick Index (Free, Pro) extension for Joomla · Vulnerability
cve-program · CVE-2026-85190
PublishedJoomla 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.
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CVE-2026-85190 · CVE overview and exploitation status
cve-program · CVE-2026-85190
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