CVE-2026-72819: Grav CMS before 2.0.13 Remote Code Execution via ZIP Upload

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-14 · updated 2026-10-08
Weakness: CWE-94

Description

Grav CMS before 2.0.13 contains a remote code execution vulnerability in the Flex Objects plugin settings validation that allows authenticated users to execute arbitrary code by uploading a ZIP file containing PHP code. Attackers can bypass routine name validation by using array notation instead of string notation, call the unZip routine with a malicious archive, and write PHP files to the web root for execution.

Affected products

getgrav grav: before 2.0.13 — fixed in 2.0.13

How to fix

Upgrade to a fixed version: getgrav grav 2.0.13. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2026-72819 or the next vulnerability affects your stack