{"id":"CVE-2026-75827","revision":"7bca7612081e4c64a2759116d89bd9a6","records":[{"revision":"7bca7612081e4c64a2759116d89bd9a6","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-75827","aliases":[],"title":"Grav before 2.0.15 Arbitrary File Write via error_log","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.","state":0,"publishedAt":"2026-08-18T11:19:40.317+00:00","modifiedAt":"2026-10-08T15:24:56.096+00:00","affected":[{"ecosystem":"Vendor product","name":"grav","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"getgrav\",\n                    \"product\": \"grav\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2.0.15\"\n                        },\n                        {\n                            \"version\": \"2.0.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:composer/getgrav/grav\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-75827","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-75827","identifiers":["CVE-2026-75827"]},"retained":false,"historicalAffected":[]}],"coverage":[]}