Stored cross-site scripting in Phoca Gallery for Joomla
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
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
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
- 2026-10-23 Threatist record created from CVE-2026-102786
- 2026-10-23 Alias added: GHSA-42xm-gwxc-xhg6
- 2026-10-24 Priority changed: MEDIUM → LOW
- 2026-11-02 CISA SSVC decision points changed
References
Other 1
More phoca.cz vulnerabilities
- 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
Sources
- CVE-2026-102786 · CVE Program
- CVE-2026-102786 · NVD
- FIRST EPSS
- GHSA-42xm-gwxc-xhg6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences