CVE-2026-42608
Published: May 11, 2026
Modified: May 11, 2026
Description
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 session_id (passed as __form-flash-id in POST requests), an unauthenticated attacker can traverse the filesystem to create arbitrary directories and write an index.yaml file containing attacker-controlled data. This vulnerability can lead to unauthorized modification of application behavior, potential data integrity issues, and service disruption in production environments. This vulnerability is fixed in 2.0.0-beta.2.
| Vendor | Product | Versions |
|---|---|---|
getgrav | grav | affected < 2.0.0-beta.2 |
Weaknesses (CWE)
References
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