high7.5
CVE-2026-85190
Joomla Extension - regularlabs.com - Privileged stored XSS via class option in Quick Index extension for Joomla < 5.0.5 - Quick Index inserts configurable clas…
Impact
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 products
| Product | Affected versions |
|---|---|
| Quick Index Extension For Joomla | before 5.0.5 |
Versions were read from the advisory text. No structured product data has been published for this record yet.