{"id":"CVE-2026-72709","title":"SPIP before version 4.4.18 contains a missing authorization vulnerability in sensitive actions under ecrire/action/ that allows unauthenticated attackers to invoke privileged actions by supplying only a valid CSRF nonce without any serve…","summary":"SPIP before version 4.4.18 contains a missing authorization vulnerability in sensitive actions under ecrire/action/ that allows unauthenticated attackers to invoke privileged actions by supplying only a valid CSRF nonce without any serve…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-862"],"vendor":"SPIP","product":"SPIP","affected":["SPIP < 4.4.18"],"published":"2026-09-11","updated":"2026-09-15","sourceUpdated":"2026-09-15T03:17:05.813","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72709","references":[{"url":"https://blog.lexfo.fr/casse-spip-sqli-to-rce.html","label":"disclosure@vulncheck.com"},{"url":"https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-18.html","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/spip-missing-authorization-via-ecrire-action-editer-auteur","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-11T17:14:37.648308Z"},"epss":0.00364,"epssPercentile":0.30235,"ingestedAt":"2026-09-13T23:55:07.224Z","slug":"CVE-2026-72709","body":"## Overview\n\nSPIP before version 4.4.18 contains a missing authorization vulnerability in sensitive actions under ecrire/action/ that allows unauthenticated attackers to invoke privileged actions by supplying only a valid CSRF nonce without any server-side permission check. Attackers can bypass template-level authorization guards through direct HTTP requests to invoke actions such as editer_auteur, enabling arbitrary account password rewrites including administrator accounts and resulting in full account takeover.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}