CVE-2026-85598: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in getgrav grav
Grav versions 2.0.0 through 2.0.17 fail to apply save-time XSS detection to modular pages, allowing authenticated page editors to store Twig-assembled XSS payloads. Attackers with page-edit rights can create modular pages with malicious Twig code that executes in visitor browsers when the parent page is rendered, including in administrator sessions.
CVE-2026-85598: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in getgrav grav
Description
Grav versions 2.0.0 through 2.0.17 fail to apply save-time XSS detection to modular pages, allowing authenticated page editors to store Twig-assembled XSS payloads. Attackers with page-edit rights can create modular pages with malicious Twig code that executes in visitor browsers when the parent page is rendered, including in administrator sessions.
CVSS v4.0
Score 5.1medium
Affected software
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-04T11:00:28.730Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9aada1acd9273b4981da05
Added to database: 09/04/2026, 11:38:09 UTC
Last updated: 09/04/2026, 23:27:52 UTC
Views: 9
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