CVE-2025-65186 Grav CMS is vulnerable to Cross Site Scripting (XSS) in the page editor

What is CVE-2025-65186?

CVE-2025-65186 is a medium-severity cross-site scripting vulnerability in Getgrav Grav, published on 2 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Grav CMS 1.7.49 is vulnerable to Cross Site Scripting (XSS). The page editor allows authenticated users to edit page content via a Markdown editor. The editor fails to properly sanitize <script> tags, allowing stored XSS payloads to execute when pages are viewed in the admin interface.

Weakness: CWE-79

Which versions are affected by CVE-2025-65186?

2 open source packages ship an affected version, including getgrav/grav. It affects 1 product.

Products include Getgrav Grav.

How do I fix CVE-2025-65186?

No fix has been published for CVE-2025-65186 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-65186 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-65186 exists.

Other vulnerabilities in Getgrav Grav

• CVE-2023-34251 Grav Server Side Template Injection vulnerability Critical 10.0
• CVE-2025-46199 Cross-site scripting in n/a Critical 9.8
• CVE-2021-47812 GravCMS 1.10.7 - Arbitrary YAML Write/Update (Unauthenticated) (2) Critical 9.3
• CVE-2025-66844 Grav may be vulnerable to SSRF attack via Twig Templates Critical 9.1
• CVE-2022-2073 Code Injection in getgrav/grav Critical 9.1

All Getgrav Grav vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-cchq-397m-q2qm.