{"id":"CVE-2026-65608","title":"Grav versions >= 1.7.0 and before 2.0.9 contain a remote code execution vulnerability","summary":"Grav versions >= 1.7.0 and before 2.0.9 contain a remote code execution vulnerability. FlexDirectory::dynamicDataField() resolves blueprint data-*@: directives by calling call_user_func_array() on attacker-influenced input, validating on…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-470"],"vendor":"getgrav","product":"grav","affected":["grav >= 1.7.0 < 2.0.9"],"patched":["getgrav/grav 2.0.9"],"published":"2026-07-23","updated":"2026-10-08","sourceUpdated":"2026-10-08T16:17:29.700","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-65608","references":[{"url":"https://github.com/getgrav/grav/commit/fae9e1bf2c40ce0b50d0dfce647aaa1d22f98969","label":"disclosure@vulncheck.com"},{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-c4wf-2xxc-68qm","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/grav-before-remote-code-execution-via-flexdirectory","label":"disclosure@vulncheck.com"},{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-c4wf-2xxc-68qm","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65608"},{"url":"https://github.com/advisories/GHSA-c4wf-2xxc-68qm"}],"tags":["nvd","cve.org","exploit-available","ghsa","composer"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-07-23T18:00:17.857895Z"},"epss":0.01116,"epssPercentile":0.6589,"aliases":["GHSA-c4wf-2xxc-68qm"],"ecosystem":"composer","ingestedAt":"2026-09-17T17:23:30.691Z","slug":"CVE-2026-65608","body":"## Overview\n\nGrav versions >= 1.7.0 and before 2.0.9 contain a remote code execution vulnerability. FlexDirectory::dynamicDataField() resolves blueprint data-*@: directives by calling call_user_func_array() on attacker-influenced input, validating only that the target is callable (is_callable()) without restricting dangerous functions such as exec, system, passthru, or shell_exec. Because FlexDirectory registers this handler for every Flex directory, it bypasses the validation added to Blueprint::dynamicData() in 2.0.7 (GHSA-fj2p-qj2f-74v5). Any authenticated user with create or update permission on any Flex-based directory (Flex Users, Flex Pages, Flex Objects, or custom Flex types) can execute arbitrary shell commands on the server.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-65608)\n\nAffected packages:\n\n- `getgrav/grav >= 1.7.0, < 2.0.9`\n\nPatched in:\n\n- `getgrav/grav 2.0.9`\n\nSource: https://github.com/advisories/GHSA-c4wf-2xxc-68qm","depth":"midnight","depthScore":61,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[{"seq":218138,"id":"CVE-2026-65608","ts":1791478427134,"field":"exploit_available","old":"false","new":"true"}]}