CVE-2026-100673 Details
Description
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.
A stored cross-site scripting vulnerability has been identified in the Grav Data Manager plugin, specifically in versions 1.0.1 through 1.4.4. The issue arises because the plugin's item-detail view renders stored data entries without proper escaping, using Twig's 'raw' filter. This flaw can be exploited by an unauthenticated visitor who submits a front-end form that saves data to 'user/data'. The submitted HTML payload is executed as JavaScript in the session of an administrator who later views the entry in the classic admin panel, with the administrator's privileges and CSRF token. The vulnerability affects sites using the Grav 1.7 Admin Next interface, which renders data correctly, but is present in the classic admin panel. The issue has been fixed in Data Manager version 1.4.5.
To address this vulnerability, users should update the Grav Data Manager plugin to version 1.4.5 or later, where the issue has been fixed. For those unable to update immediately, it is possible to restrict the 'admin.data-manager' permission to limit access to the affected view, or to switch to Grav 2.0 with the Admin Next interface, which is not vulnerable. However, these alternatives do not remove the stored payload, so it is recommended to review existing entries in 'user/data' after updating.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 26, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/getgrav/grav/security/advisories/GHSA-863q-9v8v-m9fv | [email protected] | AdvisoryRemedyVendor |
| https://www.vulncheck.com/advisories/grav-data-manager-before-1.4.5-stored-xss-via-item-detail-view | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Grav Data Manager | >= 1.0.1, <= 1.4.4 (semver) |
CPE
Remediation
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Change History
1 change record found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 26, 2026 | New CVE Received | [email protected] |