Medium severity · published Sep 4, 2026
CVE-2026-85601
Grav Admin before 2.0.20 Cross-Site Scripting via marked.js
5.4
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav · getgrav
before 2.0.20 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85601
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85601
github.com
https://github.com/getgrav/grav/security/advisories/GHSA-752r-88j4-vxm3
www.vulncheck.com
https://www.vulncheck.com/advisories/grav-admin-before-2.0.20-cross-site-scripting-via-marked-js
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