All vulnerabilities

Servers and applications

CVE-2021-23124

An issue was discovered in Joomla! 3.9.0 through 3.9.23. The lack of escaping in mod_breadcrumbs aria-label attribute allows XSS attacks.

Severity
Medium 6.1
Published
12 Jan 2021
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
Joomla!Servers and applications · cpe:a:joomla:joomla\!
  • From 3.9.0 up to 3.9.23

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-23124
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-23124