CVE-2025-64059
Received Received - Intake

Grav CMS Admin JavaScript Injection

Publication date: 2026-09-13

Last updated on: 2026-09-13

Assigner: MITRE

Description
Grav 1.7.50.2 allows admins to enter JavaScript via the Home Page editor. NOTE: the relevance of this for stored XSS is disputed because admins are allowed to modify templates, install plugins, and upload other executable content.

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Meta Information

Published
2026-09-13
Last Modified
2026-09-13
Generated
2026-09-14
AI Q&A
2026-09-13
EPSS Evaluated
N/A
NVD
CVE-2025-64059
EUVD
EUVD-2025-210894

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
grav grav 1.7.50.2

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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.

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Executive Summary

Grav 1.7.50.2 has a vulnerability where administrators can inject JavaScript code through the Home Page editor. This could potentially lead to stored cross-site scripting (XSS) attacks, though the impact is debated since admins already have broad permissions to modify templates and upload executable content.

Detection Guidance

This vulnerability involves stored XSS via JavaScript entered by admins in Grav 1.7.50.2's Home Page editor. Detection requires checking for unauthorized JavaScript in Grav's template files or plugin configurations. Review files in the /user/themes/ or /user/plugins/ directories for unexpected scripts. No specific commands are provided in the context.

Impact Analysis

If exploited, this vulnerability could allow an attacker with admin access to execute malicious JavaScript in the context of other users' sessions. This might lead to unauthorized actions, data theft, or session hijacking. However, the risk is limited since only admins can exploit it.

Compliance Impact

This vulnerability allows admins to inject JavaScript via the Home Page editor, which could lead to stored cross-site scripting (XSS). While the impact is disputed, such vulnerabilities may pose risks to compliance with GDPR or HIPAA if they enable unauthorized data access or modification.

Mitigation Strategies

Update Grav to the latest version to ensure all security patches are applied. Review admin permissions to restrict unnecessary access to template editing and plugin installation. Monitor for unauthorized JavaScript changes in the Home Page editor.

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