Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2
Priority LOW 27CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00266 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
- Partial
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 listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-66490
- 2026-10-03 Alias added: GHSA-6432-frr4-pgf6
References
More Balbooa Gridbox vulnerabilities
- TI-2018-08357 The Balbooa Gridbox extension version 2.4.0 and previous versions for Joomla! is… CVSS 3.0MEDIUM 6.1
- TI-2026-46929 Improper access control in Balbooa Gridbox extension for Joomla CVSS 4.0CRITICAL 10.0
- TI-2026-46928 Improper access control in Balbooa Gridbox extension for Joomla CVSS 4.0CRITICAL 10.0
- TI-2026-46925 Improper access control in Balbooa Gridbox extension for Joomla CVSS 4.0CRITICAL 10.0
- TI-2026-46931 SQL injection in Balbooa Gridbox extension for Joomla CVSS 4.0CRITICAL 9.2
- TI-2026-46930 Joomla Extension - balbooa.com - Unauthenticated recursive directory deletion in Gridbox < 2.20.2 CVSS 4.0CRITICAL 9.2
Sources
- CVE-2026-66490 · CVE Program
- CVE-2026-66490 · NVD
- FIRST EPSS
- GHSA-6432-frr4-pgf6 · 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