CVE-2026-85603

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Grav

PublishedSep 4, 2026

First seenSep 4, 2026

Weakness typeCWE-73CWE-73

How to fix

Update

getgrav grav1.10.55 or later

Vendor advisories

github.com/getgrav/grav/security/advisories/GHSA-h9g9-73c3-23c9

Affected products

Product	Affected versions	Fixed in
getgrav grav	v < 1.10.55	1.10.55

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