{"id":"CVE-2026-64850","aliases":["CVE-2026-65008","GHSA-fj2p-qj2f-74v5"],"url":"https://o3.security/vulnerability/CVE-2026-64850","summary":"Grav: Remote code execution via unrestricted callable in Blueprint::dynamicData()","details":"Grav is a file-based Web platform. Prior to 2.0.7, Grav Blueprint::dynamicData() in system/src/Grav/Common/Data/Blueprint.php sends an editor-controlled Class::method provider and arguments to call_user_func_array() without rejecting dangerous callback parameters. An account with admin.pages or api.pages.write can use Grav\\Common\\Utils::arrayFilterRecursive() as a trampoline with system as the callback, place a command in page frontmatter, and execute that command as the web server user when the page is viewed. This issue is fixed in version 2.0.7.","published":"2026-08-19T15:58:02.850Z","modified":"2026-08-21T03:46:20.731675827Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"getgrav/grav","fixedVersion":"2.0.7"}],"fix":{"url":"https://github.com/getgrav/grav/commit/acffa34cbb0787fee87c609e0d6289e904fee33c","label":"getgrav/grav@acffa34"},"references":[{"type":"WEB","url":"https://github.com/getgrav/grav/releases/tag/2.0.7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64850.json"},{"type":"ADVISORY","url":"https://github.com/getgrav/grav/security/advisories/GHSA-fj2p-qj2f-74v5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64850"},{"type":"FIX","url":"https://github.com/getgrav/grav/commit/acffa34cbb0787fee87c609e0d6289e904fee33c"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-21T03:46:20.731675827Z"}}