Getgrav Grav up to 2.0.24 Modular Pages cross site scripting

Summaryinfo

A vulnerability classified as problematic was found in Getgrav Grav up to 2.0.24. This issue affects some unknown processing of the component Modular Pages. Executing a manipulation can lead to cross site scripting. This vulnerability is handled as CVE-2026-85598. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Getgrav Grav up to 2.0.24 and classified as problematic. This vulnerability affects an unknown function of the component Modular Pages. 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:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-85598 since 09/04/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Getgrav

Name

• Grav

Version

• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5
• 2.0.6
• 2.0.7
• 2.0.8
• 2.0.9
• 2.0.10
• 2.0.11
• 2.0.12
• 2.0.13
• 2.0.14
• 2.0.15
• 2.0.16
• 2.0.17
• 2.0.18
• 2.0.19
• 2.0.20
• 2.0.21
• 2.0.22
• 2.0.23
• 2.0.24

Website

• Product: https://github.com/getgrav/grav/

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CPE 2.2info

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