Description
Grav before 2.0.15 contains an arbitrary file write vulnerability in the Blueprint dynamic-data bare-function validation that uses an incomplete denylist instead of a positive allowlist. Attackers with page-edit or blueprint-config access can invoke the error_log function through a data directive to append PHP payloads to web-accessible files, achieving remote code execution.
CVSS 8.8EPSS 0.5890000000000001%Risk 0.93
View source- Published
- 2026-08-18 12:19:32
- Affected versions
- <2.0.15
- Type
- Web application
- Last modified
- 2026-08-19 15:18:08
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H