CVE-2026-72695: Grav: Path Traversal in MediaUploadTrait::deleteFile() Allows Arbitrary File Deletion

September 17, 2026

A path traversal vulnerability in MediaUploadTrait::deleteFile() allows an authenticated user with media management permissions to delete arbitrary files on the server. The method validates only the basename portion of the filename using Utils::checkFilename(), while the directory path (which may contain ../ sequences) is preserved and passed unvalidated to unlink(). This enables directory escape from the intended media storage path.

References

github.com/advisories/GHSA-jq29-c7v8-rg55
github.com/getgrav/grav/security/advisories/GHSA-jq29-c7v8-rg55
nvd.nist.gov/vuln/detail/CVE-2026-72695
www.vulncheck.com/advisories/grav-before-path-traversal-via-mediauploadtrait-deletefile

Code Behaviors & Features

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