Vulnerability record · CVE-2025-66308 · published 1 December 2025

CVE-2025-66308: Getgrav grav-plugin-admin cross-site scripting vulnerability

Getgrav · Grav Plugin Admin

This 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 1.11.0-beta.1, a Stored Cross-Site Scripting (XSS) vulnerability was identified in the /admin/config/site endpoint of the Grav application. This vulnerability allows attackers to inject malicious scripts into the data[taxonomies] parameter. The injected payload is stored on the server and automatically executed in the browser of any user who accesses the affected site configuration, resulting in a persistent attack vector. This vulnerability is fixed in 1.11.0-beta.1.

6.8 CVSS 4.0 Medium EPSS 0.21% · top 89.5% CWE-79 · Cross-site scripting

6.8CVSS 4.0 base score

0.21%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

3References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Grav Plugin Admin Getgrav

References

Link	Tags
https://github.com/getgrav/grav-plugin-admin/commit/99f653296504f1d6408510dd2f6f20a45a26f9b0	Patch
https://github.com/getgrav/grav/security/advisories/GHSA-gqxx-248x-g29f	ExploitVendor Advisory
https://github.com/getgrav/grav/security/advisories/GHSA-gqxx-248x-g29f	ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-21425Grav Admin Plugin unauthenticated access control allows YAML write and RCEGrav Admin Plugin 1.10.7 and earlier lets an unauthenticated user invoke administrator controller methods without credentials. Those calls can create…EPSS 81%analysed7 Apr 2021 6.2CVE-2025-66310Getgrav grav-plugin-admin cross-site scripting vulnerabilityThis 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.…EPSS 0.21%1 Dec 2025 6.2CVE-2025-66311Getgrav grav-plugin-admin cross-site scripting vulnerabilityThis 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.…EPSS 0.21%1 Dec 2025 6.2CVE-2025-66312Getgrav grav-plugin-admin cross-site scripting vulnerabilityThis 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.…EPSS 0.21%1 Dec 2025 6.2CVE-2025-66309Getgrav grav-plugin-admin cross-site scripting vulnerabilityThis 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.…EPSS 0.23%1 Dec 2025 5.4CVE-2021-3920Getgrav grav-plugin-admin cross-site scripting vulnerabilitygrav-plugin-admin is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')EPSS 1.4%19 Nov 2021 5.4CVE-2021-3799Getgrav grav-plugin-admin clickjacking vulnerabilitygrav-plugin-admin is vulnerable to Improper Restriction of Rendered UI Layers or FramesEPSS 1.6%27 Sep 2021 5.3CVE-2025-66307Getgrav grav-plugin-admin vulnerabilityThis 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.…EPSS 0.32%1 Dec 2025

Source: NIST National Vulnerability Database (record CVE-2025-66308), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.