UpHeron
All vulnerabilities

Servers and applications

CVE-2026-21631

Lack of output escaping leads to a XSS vector in the multilingual associations component.

Severity
Medium 5.9
Published
1 Apr 2026
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
5.4.4, 6.0.4
Sources
NVD

Affected software

SoftwareAffected versions
Joomla!Servers and applications · cpe:a:joomla:joomla\!
  • From 3.0.0 before 5.4.4
  • From 6.0.0 before 6.0.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-21631
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-21631