CVE-2026-72696

High

Description

Grav CMS before 2.0.16 contains a symlink following vulnerability in Scheduler Job::createLockFile() that allows local attackers to overwrite arbitrary files by pre-creating symlinks at predictable lock file paths in the world-writable temp directory. Attackers can place a symlink at the predictable lock path pointing to any file the web server process can write to, and the next scheduled job run will follow the symlink and overwrite the target file's content with the job ID string.

SeverityHigh

CVSS8.4

Exploit probability—

Product

Grav

PublishedAug 25, 2026

First seenAug 25, 2026

Weakness typeCWE-59Improper link resolution

How to fix

Update

getgrav grav2.0.16 or later

Vendor advisories

github.com/getgrav/grav/security/advisories/GHSA-q8w8-6cq5-j4h2

Affected products

Product	Affected versions	Fixed in
getgrav grav	v < 2.0.16	2.0.16

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