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TI-2026-58523 Aliases CVE-2026-85190GHSA-2722-5gxq-8j64

Cross-site scripting in regularlabs.com Quick Index extension for Joomla

Priority LOW 35CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00418 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
regularlabs.comQuick Index (Free, Pro) extension for Joomla1.0.0-5.0.4—No fix listedCNA
  • Quick Index (Free, Pro) extension for Joomla Vendorregularlabs.com Affected 1.0.0-5.0.4 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-85190
  2. 2026-10-03 Alias added: GHSA-2722-5gxq-8j64

References

Other 1

  • TI-2026-46603 Path traversal in regularlabs.com GeoIP extension for Joomla CVSS 3.1CRITICAL 9.8
  • TI-2025-16115 Extension - regularlabs.com - Remote code execution vulnerability in the Sourcerer extensions < 12.0.0 for Joomla CVSS 3.1CRITICAL 9.8
  • TI-2026-52038 Code injection in regularlabs.com Sourcerer extension for Joomla CVSS 4.0CRITICAL 10.0
  • TI-2026-46380 Information disclosure in regularlabs.com Cache Cleaner Pro extension for Joomla CVSS 3.1CRITICAL 9.8
  • TI-2026-46379 Server-side request forgery in regularlabs.com Cache Cleaner Pro extension for Joomla CVSS 3.1CRITICAL 9.8
  • TI-2026-46326 Improper access control in regularlabs.com Sourcerer extension for Joomla CVSS 3.1CRITICAL 9.8
See all 43 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences