CVE-2026-85598

Grav 2.0.0 through 2.0.17 Stored XSS via Modular Pages

MEDIUM
6.4
CVSS Score
Published: September 4, 2026 at 11:30 AM UTC
Updated: September 14, 2026 at 08:16 PM UTC
1 product affected across 1 vendorGrav

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Severity
MEDIUM6.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

95%
2.0.0 ≤ v ≤ 2.0.172.0.0 ≤ v ≤ 2.0.242.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.4MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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