getgrav up to 1.0.9 Slug Validation PagesController::move slug path traversal

Summaryinfo

A vulnerability marked as problematic has been reported in getgrav grav up to 1.0.9. The affected element is the function PagesController::move of the component Slug Validation. Performing a manipulation of the argument slug results in path traversal. This vulnerability is known as CVE-2026-65896. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in getgrav grav up to 1.0.9. This affects the function PagesController::move of the component Slug Validation. The manipulation of the argument slug with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Grav API Plugin (Composer package getgrav/grav-plugin-api) before 1.0.10 fails to properly validate the slug field in the POST /pages/{route}/move endpoint. PagesController::move() sanitizes the slug only with ltrim($body['slug'], '.'), which strips leading periods but does not neutralize '/' or '..' segments. An authenticated API caller with the api.pages.write permission can supply path traversal sequences (e.g., 01.home/../../../pwned) to move an entire page directory (content and media) to an arbitrary writable location outside user/pages/, including outside the Grav installation.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-65896 since 07/23/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 1.0.10 eliminates this vulnerability.

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Productinfo

Vendor

• getgrav

Name

• grav

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4
• 1.0.5
• 1.0.6
• 1.0.7
• 1.0.8
• 1.0.9

Website

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

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