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Stored cross-site scripting in Phoca Gallery for Joomla

Priority LOW 39CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
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

The Phoca Gallery extension for Joomla, versions 4.5.0 - 6.1.5, does not neutralize input in HTML attributes (CWE-79). An authenticated user can store script in gallery data that runs in the browser of other users who view the page. Exploitation needs a user to interact with the affected page.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

Joomla Extension - phoca.cz - Authenticated stored cross-site scripting through HTML attribute injection in Phoca Gallery 4.5.0 - 6.1.5

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00262 18th 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
phoca.czPhoca Gallery extension for Joomla4.5.0-6.1.5—No fix listedCNA
  • Phoca Gallery extension for Joomla Vendorphoca.cz Affected 4.5.0-6.1.5 Fixed in — No fix listed CNA

Remediation

No fixed version is listed for the Phoca Gallery extension for Joomla.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Timeline

  1. 2026-10-23 Threatist record created from CVE-2026-102786
  2. 2026-10-23 Alias added: GHSA-42xm-gwxc-xhg6
  3. 2026-10-24 Priority changed: MEDIUM → LOW
  4. 2026-11-02 CISA SSVC decision points changed

References

  • TI-2026-52036 SQL injection in phoca.cz Phoca Cart extension for Joomla CVSS 4.0CRITICAL 9.3
  • TI-2026-67747 Authorization bypass in Phoca Cart lets users download customer files CVSS 4.0HIGH 8.7
  • TI-2026-41646 Unrestricted file upload in phoca.cz Phoca Download extension for Joomla CVSS 4.0CRITICAL 9.0
  • TI-2025-34270 Unrestricted file upload in phoca.cz - Phoca Commander for Joomla CVSS 4.0CRITICAL 9.2
  • TI-2026-53508 Joomla Extension - phoca.cz - Stored XSS via User-Agent header in Admin Order View in Phoca Cart 5.0.0-6.1.7 CVSS 4.0HIGH 8.6
  • TI-2026-47239 Path traversal in phoca.cz Phoca Commander extension for Joomla CVSS 4.0HIGH 8.2
See all 17 →

Sources