UpHeron
All vulnerabilities

Servers and applications

CVE-2022-24899

Cross-site scripting via canonical URL

Severity
Medium 6.1
Published
5 May 2022
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.13.3
Also known as
GHSA-m8x6-6r63-qvj2
Sources
NVD, Project advisories (GitHub)

Description

Contao is a powerful open source CMS that allows you to create professional websites and scalable web applications. In versions of Contao prior to 4.13.3 it is possible to inject code into the canonical tag. As a workaround users may disable canonical tags in the root page settings.

Affected software

SoftwareAffected versions
ContaoServers and applications · cpe:a:contao:contao
  • From 4.13.0 up to 4.13.2
ContaoServers and applications · github:contao/contao
  • From 4.13.0 before 4.13.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-24899
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-24899
  • GitHub Advisory Database https://github.com/advisories/GHSA-m8x6-6r63-qvj2
  • github.com https://github.com/contao/contao/security/advisories/GHSA-m8x6-6r63-qvj2