CVE-2026-66490
MEDIUMCVSS 6.1/10EPSS 0.15%
Last modified
CVE-2026-66490 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2. EPSS estimates a 0.15% chance of exploitation in the next 30 days.
Description
Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Balbooa | Gridbox | < 2.20.2 |
References
- https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-66490?
Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2
How severe is CVE-2026-66490?
CVE-2026-66490 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.15% probability of exploitation in the next 30 days.
How do I fix CVE-2026-66490?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-66476Administrator Arbitrary File Deletion in Easy Digital Downlo…4.9
- CVE-2026-66477Unauthenticated Broken Access Control in Gillion <= 4.13 ver…5.3
- CVE-2026-6648A vulnerability was found in Qibo CMS 1.0. Affected by this …3.5
- CVE-2026-66488Joomla Extension - balbooa.com - Payment bypass in Gridbox <…5.3
- CVE-2026-66489Joomla Extension - balbooa.com - Various unauthenticated fil…5.3
- CVE-2026-6649A vulnerability was determined in Qibo CMS 1.0. Affected by …6.3
- CVE-2026-66491Joomla Extension - phoca.cz - Arbitrary File Read in Phoca C…8.2
- CVE-2026-66492Joomla Extension - phoca.cz - Path Traversal vulnerability i…6.1
- CVE-2026-66493Joomla Extension - phoca.cz - Path Traversal vulnerability i…6.4
- CVE-2026-66494Joomla Extension - joomshaper.com - Unauthenticated stored X…8.7
- CVE-2026-6650A vulnerability was identified in Z-BlogPHP 1.7.5. This affe…4.7
- CVE-2026-6651A security flaw has been discovered in erponline.xyz ERP Onl…2.4
Are you affected by CVE-2026-66490?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST