CVE-2026-42842

Published: Mag 11, 2026 Last Modified: Mag 11, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,4
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: required
Scope: changed
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

The form plugin for Grav adds the ability to create and use forms. Prior to 9.1.0, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Grav CMS Form plugin's select field template. Taxonomy tag and category values are rendered with the Twig |raw filter in the admin panel, bypassing the global autoescape protection. An editor-level user can inject arbitrary JavaScript that executes in any administrator's browser session when they view or edit any page in the admin panel. This vulnerability is fixed in 9.1.0.

79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Confidentiality Integrity Availability
Potential Impacts:
Bypass Protection Mechanism Read Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: AI/ML, Web Based, Web Server
Likelihood of Exploit: High
View CWE Details
https://github.com/getgrav/grav-plugin-form/commit/6bffb4c9…
https://github.com/getgrav/grav-plugin-form/commit/6bffb4c98be468a155d1656544ec…
https://github.com/getgrav/grav/security/advisories/GHSA-c2…
https://github.com/getgrav/grav/security/advisories/GHSA-c2q3-p4jr-c55f