UpHeron
All vulnerabilities

Servers and applications

CVE-2026-71573

Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper implementation prevented configured CORS origins from being properly validated in CORS requests.

Severity
Medium 6.9
Published
18 Aug 2026
Last changed
3 Sept 2026
Added to UpHeron
21 Oct 2026
Fixed in
5.4.8, 6.1.3
Sources
NVD

Affected software

SoftwareAffected versions
Joomla!Servers and applications · cpe:a:joomla:joomla\!
  • From 4.0.0 before 5.4.8
  • From 6.0.0 before 6.1.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-71573
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-71573