Getgrav Grav up to 2.0.19 MarkdownEditor/MarkdownModal marked.parse cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in Getgrav Grav up to 2.0.19. The affected element is the function marked.parse of the component MarkdownEditor/MarkdownModal. The manipulation results in cross site scripting. This vulnerability was named CVE-2026-85601. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Getgrav Grav up to 2.0.19. It has been classified as problematic. Affected is the function marked.parse of the component MarkdownEditor/MarkdownModal. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

Grav Admin before 2.0.20 fails to sanitize output from marked.parse() before injecting it into the DOM via Svelte's {@html} directive in MarkdownEditor and MarkdownModal components. Attackers can inject javascript: URI schemes in plugin or theme changelogs to execute arbitrary code in authenticated admin sessions without requiring site access.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-85601 since 09/04/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are necessary for exploitation. 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 2.0.20 eliminates this vulnerability.

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

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

Website

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

CPE 2.3info

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CPE 2.2info

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Entryinfo

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

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