ShinyHunters hacked Clop leak site using Grav CMS path traversal flaw
ShinyHunters defaced Clop's leak site via unpatched Grav CMS path traversal CVE-2026-42608; Grav patched the 1.7 branch.
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CVE-2026-42608
- CVSS 4.0
- 8.8 high
- EPSS
- <1%p49
- Published
- ·
- Modified
Description · NVD
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.
- Vendors
- getgrav
- Products
- grav
- Weakness
- CWE-22
- Vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X