CVE-2026-85601: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in getgrav grav
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.
CVE-2026-85601: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in getgrav grav
Description
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.
CVSS v4.0
Score 5.1medium
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-04T11:00:28.731Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9aada3acd9273b4981da2b
Added to database: 09/04/2026, 11:38:11 UTC
Last updated: 09/04/2026, 12:22:35 UTC
Views: 2
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