All vulnerabilities

Servers and applications

CVE-2021-29440

Grav is a file based Web-platform. Twig processing of static pages can be enabled in the front matter by any administrative user allowed to create or edit pages. As the Twig processor runs unsandboxed, this behavior can be used to gain arbitrary code execution and elevate privileges on the instance. The issue was addressed in version 1.7.11.

Severity
High 7.2
Published
13 Apr 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.7.11
Sources
NVD

Affected software

SoftwareAffected versions
GravServers and applications · cpe:a:getgrav:grav
  • Every version before 1.7.11

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-29440
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-29440