getgrav Data Manager Plugin up to 1.4.4 Item Detail View item.html.twig cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in getgrav Data Manager Plugin up to 1.4.4. This issue affects some unknown processing of the file admin/templates/partials/item.html.twig of the component Item Detail View. Such manipulation leads to cross site scripting. This vulnerability is listed as CVE-2026-100673. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in getgrav Data Manager Plugin up to 1.4.4. It has been rated as problematic. Affected by this issue is some unknown functionality of the file admin/templates/partials/item.html.twig of the component Item Detail View. 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:

The Grav Data Manager plugin (getgrav/grav-plugin-datamanager) versions 1.0.1 through 1.4.4 render stored data entries in the item-detail view (admin/templates/partials/item.html.twig) without escaping, applying Twig's `raw` filter — in some cases after a striptags('<br>') call that PHP's strip_tags() bypasses by preserving allowed tags together with their attributes. An unauthenticated visitor who submits a front-end form whose submissions are saved to user/data can store an HTML payload that executes as JavaScript in the session and origin of an administrator who later opens that entry in the classic admin panel, running with that administrator's privileges and CSRF token. Execution occurs without further interaction for list values (such as checkbox or multi-select fields) and on hover for ordinary text fields. Sites using the Grav 2.0 Admin Next interface are not affected, because it renders the same data through a separate, correctly escaping code path. The issue is fixed in Data Manager 1.4.5.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-100673 since 09/26/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 1.4.5 eliminates this vulnerability.

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Productinfo

Vendor

• getgrav

Name

• Data Manager Plugin

Version

• 1.4.0
• 1.4.1
• 1.4.2
• 1.4.3
• 1.4.4

CPE 2.3info

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CPE 2.2info

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