{"id":"CVE-2026-72709","aliases":["DEBIAN-CVE-2026-72709","EUVD-2026-76155","GHSA-px65-33x4-mwqq","UBUNTU-CVE-2026-72709"],"status":"published","title":"SPIP \u003c 4.4.18 Missing Authorization via ecrire/action/","description":"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 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.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00658,"percentile":0.51954,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-862"],"published":"2026-09-11T16:38:18Z","modified":"2026-10-01T15:20:27Z","fixes":[{"ecosystem":"Debian:13","package":"spip","fixed_in":["4.4.19+dfsg-0+deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"spip","fixed_in":["4.4.18+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:13","package":"spip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.19+dfsg-0+deb13u1"}]}],"versions":["4.4.10+dfsg-1","4.4.11+dfsg-0+deb13u1","4.4.11+dfsg-1","4.4.13+dfsg-0+deb13u1","4.4.13+dfsg-1","4.4.14+dfsg-1","4.4.15+dfsg-0+deb13u1","4.4.15+dfsg-1","4.4.16+dfsg-0+deb13u1","4.4.16+dfsg-1","4.4.18+dfsg-1","4.4.3+dfsg-1","4.4.3+dfsg-1+deb13u1","4.4.4+dfsg-1","4.4.5+dfsg-1","4.4.6+dfsg-1","4.4.7+dfsg-1","4.4.8+dfsg-1","4.4.9+dfsg-1"]},{"source":"osv","ecosystem":"Debian:14","package":"spip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.18+dfsg-1"}]}],"versions":["4.4.10+dfsg-1","4.4.11+dfsg-1","4.4.13+dfsg-1","4.4.14+dfsg-1","4.4.15+dfsg-1","4.4.16+dfsg-1","4.4.3+dfsg-1","4.4.4+dfsg-1","4.4.5+dfsg-1","4.4.6+dfsg-1","4.4.7+dfsg-1","4.4.8+dfsg-1","4.4.9+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"spip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.20-1","3.0.21-1","3.0.21-1ubuntu1","3.0.21-1ubuntu1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"spip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.4-3","3.1.4-4~deb9u3build0.18.04.1","3.1.4-4~deb9u5build0.18.04.1","3.1.4-4~deb9u5ubuntu0.1~esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"spip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.4-1","3.2.5-1","3.2.7-1","3.2.7-1ubuntu0.1","3.2.7-1ubuntu0.1+esm2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"spip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.11-3","3.2.12-1","4.0.2-1","4.0.4-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"spip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.11+dfsg-1","4.1.12+dfsg-1","4.1.13+dfsg-1","4.1.15+dfsg-1","4.2.9+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"spip","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.3+dfsg-1","4.4.6+dfsg-1","4.4.7+dfsg-1","4.4.8+dfsg-1","4.4.9+dfsg-1"]}],"products":[{"vendor":"spip","product":"spip"}],"references":[{"url":"https://blog.lexfo.fr/casse-spip-sqli-to-rce.html","tags":["technical-description","exploit","report"]},{"url":"https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-18.html","tags":["release-notes","patch","report"]},{"url":"https://www.vulncheck.com/advisories/spip-missing-authorization-via-ecrire-action-editer-auteur","tags":["third-party-advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72709"},{"url":"https://github.com/advisories/GHSA-px65-33x4-mwqq"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-72709","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-72709","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72709","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-72709","title":"SPIP \u003c 4.4.18 Missing Authorization via ecrire/action/","description":"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 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.","status":"published","published":"2026-09-11T16:38:18.595Z","modified":"2026-10-01T15:20:27.422Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:19:52.016971Z"}],"euvd":[{"id":"EUVD-2026-76155","description":"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 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.","status":"published","published":"2026-09-11T16:38:18Z","modified":"2026-10-01T15:20:27Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-02T17:27:45.358437Z"}],"ghsa":[{"id":"GHSA-px65-33x4-mwqq","title":"SPIP before 4.4.18 contains a missing authorization vulnerability in the administrative action...","description":"SPIP before 4.4.18 contains a missing authorization vulnerability in the administrative action endpoints under ecrire/action/ that allows unauthenticated attackers to perform privileged actions by supplying a valid HMAC-SHA256 nonce without any server-side permission check via autoriser(). Attackers can obtain a valid nonce, compute it for any action as the anonymous user, and invoke the editer_auteur action directly over HTTP to reset the password of any user account, including the administrator.","status":"published","published":"2026-09-11T18:31:26Z","modified":"2026-09-11T18:31:32Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:11:45.091927Z"}],"nvd":[{"id":"CVE-2026-72709","description":"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 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.","status":"published","published":"2026-09-11T17:18:58.76Z","modified":"2026-09-15T03:17:05.813Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:46.271848Z"}],"osv":[{"id":"DEBIAN-CVE-2026-72709","description":"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 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.","status":"published","published":"2026-09-11T17:18:58.76Z","modified":"2026-10-01T03:03:40.928291677Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"updated_at":"2026-11-02T15:46:02.499355Z"},{"id":"UBUNTU-CVE-2026-72709","description":"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 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.","status":"published","published":"2026-09-11T17:18:00Z","modified":"2026-09-16T14:01:43.628819883Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"},{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-02T16:57:08.628462Z"}]}}