grav up to 1.10.x Admin Plugin /admin/pages/ cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability was found in grav up to 1.10.x and classified as problematic. This affects an unknown function of the file /admin/pages/ of the component Admin Plugin. Executing a manipulation can lead to cross site scripting. This vulnerability is handled as CVE-2025-66311. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in grav up to 1.10.x. This vulnerability affects an unknown code of the file /admin/pages/ of the component Admin Plugin. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

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/pages/[page] endpoint of the Grav application. This vulnerability allows attackers to inject malicious scripts into the data[header][metadata], data[header][taxonomy][category], and data[header][taxonomy][tag] parameters. These scripts are stored in the page frontmatter and executed automatically whenever the affected page is accessed or rendered in the administrative interface. This vulnerability is fixed in 1.11.0-beta.1.

The advisory is available at github.com. This vulnerability was named CVE-2025-66311 since 11/27/2025. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. 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 1.11.0-beta.1 eliminates this vulnerability. Applying the patch 99f653296504f1d6408510dd2f6f20a45a26f9b0 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-200099). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.8

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: grav 1.11.0-beta.1
Patch: 99f653296504f1d6408510dd2f6f20a45a26f9b0

Timelineinfo

11/27/2025 CVE reserved
12/01/2025 +4 days Advisory disclosed
12/01/2025 +0 days VulDB entry created
12/04/2025 +3 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-mpjj-4688-3fxg
Status: Confirmed

CVE: CVE-2025-66311 (🔒)
GCVE (CVE): GCVE-0-2025-66311
GCVE (VulDB): GCVE-100-333946
EUVD: 🔒

Entryinfo

Created: 12/01/2025 23:35
Updated: 12/04/2025 07:50
Changes: 12/01/2025 23:35 (70), 12/02/2025 18:31 (1), 12/04/2025 07:50 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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