{"cvss":9.8,"datePublished":"2026-08-20T23:16:28.647","dateUpdated":"2026-10-26T10:10:00.140","description":"SPIP before 4.4.20 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to incorrect identification of <?php blocks, and var_export's mishandling of certain cases such as presence of a '<' character.","id":"CVE-2026-77647","raw":{"affected":[{"affectedData":[{"defaultStatus":"unaffected","product":"SPIP","vendor":"SPIP","versions":[{"lessThan":"4.4.20","status":"affected","version":"0","versionType":"semver"}]}],"source":"cve@mitre.org"}],"cveTags":[],"descriptions":[{"lang":"en","value":"SPIP before 4.4.20 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to incorrect identification of <?php blocks, and var_export's mishandling of certain cases such as presence of a '<' character."},{"lang":"es","value":"SPIP antes de 4.4.20 permite a atacantes remotos no autenticados ejecutar código arbitrario, como fue explotado en la naturaleza en agosto de 2026. Esto está relacionado con la identificación incorrecta de bloques  [código_PHP_PoC] , y el manejo incorrecto de var_export de ciertos casos como la presencia de un carácter ’<’."}],"id":"CVE-2026-77647","lastModified":"2026-10-26T10:10:00.140","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":5.9,"source":"cve@mitre.org","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2026-77647","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","timestamp":"2026-08-21T19:49:42.530562Z","version":"2.0.3"}}]},"published":"2026-08-20T23:16:28.647","references":[{"source":"cve@mitre.org","url":"https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-20.html"},{"source":"cve@mitre.org","url":"https://lists.debian.org/debian-security-announce/2026/msg00359.html"}],"sourceIdentifier":"cve@mitre.org","vulnStatus":"Deferred","weaknesses":[{"description":[{"lang":"en","value":"CWE-94"}],"source":"cve@mitre.org","type":"Secondary"}]},"severity":"CRITICAL","source":"nvd","title":"SPIP before 4.4.20 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in Aug..."}