CVE-2026-66490
CVE-2026-66490 is a medium-severity vulnerability in Balbooa Gridbox with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Balbooa Gridbox
- Published:
- Last modified:
Description
Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2
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 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-66490 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-66490?
- CVE-2026-66490 affects Balbooa Gridbox. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-66490?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-66490 published?
- CVE-2026-66490 was published on 2026-07-29 and last updated on 2026-08-05.
References
Affected products (1)
- cpe:2.3:a:balbooa:gridbox:*:*:*:*:*:joomla\!:*:*
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