getgrav Grav up to 2.0.15 Scheduler Job::createLockFile symlink

Summaryinfo

A vulnerability, which was classified as problematic, has been found in getgrav Grav up to 2.0.15. Affected is the function Job::createLockFile of the component Scheduler. Performing a manipulation results in symlink. This vulnerability is cataloged as CVE-2026-72696. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability was found in getgrav Grav up to 2.0.15. It has been classified as problematic. This affects the function Job::createLockFile of the component Scheduler. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-72696 since 08/10/2026. The exploitability is told to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.0.16 eliminates this vulnerability.

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Productinfo

Vendor

• getgrav

Name

• Grav

Version

• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5
• 2.0.6
• 2.0.7
• 2.0.8
• 2.0.9
• 2.0.10
• 2.0.11
• 2.0.12
• 2.0.13
• 2.0.14
• 2.0.15

Website

• Product: https://github.com/getgrav/grav/

CPE 2.3info

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CPE 2.2info

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