CVE-2026-21631
5.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U
Summary
Lack of output escaping leads to a XSS vector in the multilingual associations component.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Joomla! Project | Joomla! CMS | 4.0.0-5.4.3 | affected |
| Joomla! Project | Joomla! CMS | 6.0.0-6.0.3 | affected |
Weaknesses
- CWE-79: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://developer.joomla.org/security-centre/1029-20260303-core-xss-vector-in-com-associations-comparison-view.html
- https://github.com/Shirshaw64p/security-advisories/tree/main/CVE-2026-21631
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