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.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 18 Aug 2026 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Grav before 2.0.15 Arbitrary File Write via error_log | |
| First Time appeared |
Getgrav
Getgrav grav |
|
| Weaknesses | CWE-94 | |
| CPEs | cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Getgrav
Getgrav grav |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-18T11:19:40.317Z
Reserved: 2026-08-18T10:57:39.580Z
Link: CVE-2026-75827
No data.
Status : Received
Published: 2026-08-18T12:19:32.553
Modified: 2026-08-18T12:19:32.553
Link: CVE-2026-75827
No data.
OpenCVE Enrichment
Updated: 2026-08-18T12:45:06Z
Weaknesses