CVE-2026-85603

Grav Admin Plugin Path Traversal via Save As Language Code

MEDIUM
6.5
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
MEDIUM6.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

Grav versions before 1.10.55 contain a path traversal vulnerability in the admin plugin's Save As action that fails to validate the language code parameter. An authenticated admin user with admin.pages.create permission can supply directory traversal sequences in the lang POST field to write arbitrary .md files outside the pages directory with attacker-controlled content.

Affected

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

95%
v < 1.10.55
Vendor states this is fixed in 1.10.55 (unaffected)

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

6.5MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-73

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