Medium severity · published Sep 4, 2026
CVE-2026-85598
Grav 2.0.0 through 2.0.17 Stored XSS via Modular Pages
6.4
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav · getgrav
2.0.0 through 2.0.17 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85598
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85598
github.com
https://github.com/getgrav/grav/security/advisories/GHSA-fg8g-663r-f366
www.vulncheck.com
https://www.vulncheck.com/advisories/grav-2.0.0-through-2.0.17-stored-xss-via-modular-pages
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