All vulnerabilities

Servers and applications

CVE-2021-27903

An issue was discovered in Craft CMS before 3.6.7. In some circumstances, a potential Remote Code Execution vulnerability existed on sites that did not restrict administrative changes (if an attacker were somehow able to hijack an administrator's session).

Severity
Critical 9.8
Published
30 Jun 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
3.6.7
Sources
NVD

Affected software

SoftwareAffected versions
Craft CMSServers and applications · cpe:a:craftcms:craft_cms
  • Every version before 3.6.7

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-27903
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-27903