CVE-2026-75107: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in getgrav grav
Grav Form Plugin before 9.1.19 fails to escape field-definition properties including prepend, append, spacer text, section text, and select option labels in form templates. Attackers with form authoring privileges can inject arbitrary HTML and JavaScript that executes for all form visitors through unescaped |raw filters and unquoted attributes.
AI Analysis
Technical Summary
The Grav Form Plugin prior to version 9.1.19 does not escape field-definition properties such as prepend, append, spacer text, section text, and select option labels in form templates. This improper neutralization of input during web page generation enables attackers who have form authoring privileges to inject arbitrary HTML and JavaScript. The injected code executes in the context of all users visiting the form due to unescaped |raw filters and unquoted attributes in the templates.
Potential Impact
Attackers with form authoring privileges can exploit this vulnerability to execute arbitrary JavaScript in the browsers of users visiting the affected forms. This can lead to session hijacking, defacement, or other malicious actions performed in the context of the vulnerable website. The CVSS 4.0 score is 5.1 (medium severity), reflecting the need for privileges to exploit and limited impact scope.
Mitigation Recommendations
A fixed version of the Grav Form Plugin is available starting from version 9.1.19. Users should upgrade to version 9.1.19 or later to remediate this vulnerability. No additional mitigation is required if the plugin is updated.
CVE-2026-75107: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in getgrav grav
Description
Grav Form Plugin before 9.1.19 fails to escape field-definition properties including prepend, append, spacer text, section text, and select option labels in form templates. Attackers with form authoring privileges can inject arbitrary HTML and JavaScript that executes for all form visitors through unescaped |raw filters and unquoted attributes.
CVSS v4.0
Score 5.1medium
Affected software
getgrav
grav
pkg:github/getgrav/grav-form-pluginRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Grav Form Plugin prior to version 9.1.19 does not escape field-definition properties such as prepend, append, spacer text, section text, and select option labels in form templates. This improper neutralization of input during web page generation enables attackers who have form authoring privileges to inject arbitrary HTML and JavaScript. The injected code executes in the context of all users visiting the form due to unescaped |raw filters and unquoted attributes in the templates.
Potential Impact
Attackers with form authoring privileges can exploit this vulnerability to execute arbitrary JavaScript in the browsers of users visiting the affected forms. This can lead to session hijacking, defacement, or other malicious actions performed in the context of the vulnerable website. The CVSS 4.0 score is 5.1 (medium severity), reflecting the need for privileges to exploit and limited impact scope.
Mitigation Recommendations
A fixed version of the Grav Form Plugin is available starting from version 9.1.19. Users should upgrade to version 9.1.19 or later to remediate this vulnerability. No additional mitigation is required if the plugin is updated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-17T17:28:41.677Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a844364c6e8be03322294ac
Added to database: 08/18/2026, 11:35:00 UTC
Last enriched: 09/25/2026, 02:40:45 UTC
Last updated: 10/03/2026, 14:46:10 UTC
Views: 43
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