getgrav grav-plugin-admin up to 1.10.49.5 URL cross site scripting

Summaryinfo

A vulnerability classified as problematic was found in getgrav grav-plugin-admin up to 1.10.49.5. Affected by this issue is some unknown functionality of the component URL Handler. Such manipulation leads to cross site scripting. This vulnerability is documented as CVE-2026-44737. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in getgrav grav-plugin-admin up to 1.10.49.5. It has been rated as problematic. Affected by this issue is an unknown function of the component URL Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

grav-plugin-admin is the admin plugin for Grav is an HTML user interface that provides a convenient way to configure Grav and easily create and modify pages. Prior to 1.10.49.5, the application fails to properly validate and sanitize user input in the data[header][title] parameter. As a result, attackers can craft a malicious URL with an XSS payload. When this URL is accessed, the injected script is reflected back in the HTTP response and executed within the context of the victim's browser session. This vulnerability is fixed in 1.10.49.5.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-44737 since 05/07/2026. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 1.10.49.5 eliminates this vulnerability. Applying the patch f67cc18e81d8767bb43d29ee6422c55ed0427803 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• getgrav

Name

• grav-plugin-admin

Version

• 1.10.49.0
• 1.10.49.1
• 1.10.49.2
• 1.10.49.3
• 1.10.49.4
• 1.10.49.5

License

• open-source

Website

• Product: https://github.com/getgrav/grav-plugin-admin/

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