CRITICAL 9.3 NVD
CVE-2026-75827
Grav before 2.0.15 contains an arbitrary file write vulnerability in the Blueprint dynamic-data bare-function validation that uses an incomplete denylist instea
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.
References
- https://github.com/getgrav/grav/security/advisories/GHSA-f8wv-xp27-6gq7
- https://www.vulncheck.com/advisories/grav-before-arbitrary-file-write-via-error-log
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-08-18 via NVD.
Risk Timeline
CVE Disclosed2026-08-18 · -1 days ago
Remediation Resources
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