{"schema":"threatline.record/2","record":{"id":"CVE-2026-112777","aliases":["GHSA-w643-x88w-6wcm"],"summary":"Craft CMS before 4.18.8 and 5.11.0 Twig create() Blocklist Bypass Leading to RCE","details":"Craft CMS 4.x before 4.18.8 and 5.x before 5.11.0 contains a blocklist bypass in the Twig create() function because its class-name checks are case-sensitive while PHP class resolution is not. Attackers with template-execution rights, such as Control Panel administrators, can instantiate SplFileObject via a lowercase class name to read .env secrets or write a PHP file into the webroot for remote code execution.","categories":["Unclassified"],"product":"cms","vendor":"craftcms","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-112777","source_modified_at":"2026-10-20T16:09:54.518Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"cms","vendor":"craftcms","versions":[{"version":"4.0.0","status":"affected","versionType":"semver","lessThan":"4.18.8"},{"version":"4.18.8","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-112777","source_modified_at":"2026-10-20T16:09:54.518Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"cms","vendor":"craftcms","versions":[{"version":"5.0.0","status":"affected","versionType":"semver","lessThan":"5.11.0"},{"version":"5.11.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-112777","source_modified_at":"2026-10-20T16:09:54.518Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"cms","ecosystem":null},"version":"4.18.8","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-112777","source_modified_at":"2026-10-20T16:09:54.518Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"cms","ecosystem":null},"version":"5.11.0","basis":"first unaffected version stated in the CVE record"}],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00488,"percentile":0.41149,"score_date":"2026-10-23"},"published_at":"2026-10-19T19:10:54.567Z","modified_at":"2026-10-20T16:09:54.518Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-112777","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-20T16:09:54.518Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-112777","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/craftcms/cms/security/advisories/GHSA-w643-x88w-6wcm","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/craft-cms-before-4.18.8-and-5.11.0-twig-create-blocklist-bypass-leading-to-rce","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-20T15:18:55.635155Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-20T16:09:54.518Z","content_hash":"f488fbd1d3b8f0cfcddb8b331e283e82b0e589b821f3d3c30a567506151d9821"}}