HIGHVulnerability
Verified
Global
NVD HIGH: CVE-2026-75827 — Grav before 2.0.15 contains an arbitrary file write vulnerability in the Bluepri...
·Source: NIST NVD
Updated:
Executive Summary
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.
Analysis
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 Score: 8.8. Published: 2026-08-18T12:19:32.553.