CVE-2026-42608

Grav CVE-2026-42608 describes an unauthenticated path traversal in the FormFlash component that lets an attacker manipulate the session_id (__form-flash-id) in POST requests to traverse the filesystem and write an index.yaml, enabling arbitrary directory creation and data manipulation. Affected: ...

CVE-2026-42608 Grav: Unauthenticated Path Traversal & Arbitrary File Write in FormFlash component.

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, there is a Path Traversal vulnerability within the FormFlash core component. By manipulating the sessionid passed as form-flash-id in POST requests, an unauthenticated attacker can traverse the filesystem to create arbitrary directories an...

Grav 路径遍历漏洞

Grav is a scalable content management system CMS developed by the Grav open-source community, suitable for use in personal blogs, small content publishing platforms, and single-page product displays. Versions of Grav prior to 2.0.0-beta.2 contained a path traversal vulnerability. This vulnerabili...

GHSA-HMCX-CH82-3FV2 Grav has Unauthenticated Path Traversal & Arbitrary File Write in its FormFlash component

Vulnerability Report: Grav CMS Unauthenticated Path Traversal & Arbitrary File Write ZERO-DAY Unauthenticated Path Traversal leading to Arbitrary Directory Creation and Configuration Injection Summary Grav CMS v1.7.49.5 and latest development source is vulnerable to a Zero-Day Path Traversal...

Directory Traversal

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Directory Traversal via the FormFlash process when the sessionid parameter mapped to form-flash-id in POST requests is not properly sanitized...

Grav has Unauthenticated Path Traversal & Arbitrary File Write in its FormFlash component

Vulnerability Report: Grav CMS Unauthenticated Path Traversal & Arbitrary File Write ZERO-DAY Unauthenticated Path Traversal leading to Arbitrary Directory Creation and Configuration Injection Summary Grav CMS v1.7.49.5 and latest development source is vulnerable to a Zero-Day Path Traversal...