Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-72709

CVE-2026-72709CRITICAL

SPIP < 4.4.18 Missing Authorization via ecrire/action/

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   H   H    9.3   .0066   49.7     —

AFFECTED
  Product  Versions     Fixed
  SPIP     unspecified  —

TIMELINE
  Aug 10  Reserved by VulnCheck
  Sep 11  Published (CNA: VulnCheck)
  Sep 14  EXPLOIT PUBLISHED — CVE-2026-72709 (SPIP). Public exploit reference added.
  Oct 1   EXPLOIT PUBLISHED — CVE-2026-72709 (SPIP). Public exploit reference added.

CWE-862 · CNA: VulnCheck · CVSS v4.0 · 3 references · NVD status: Deferred

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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
August 10, 2026	Reserved	Reserved by VulnCheck
September 11, 2026	Published	Published (CNA: VulnCheck)
September 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-72709 (SPIP). Public exploit reference added.
October 1, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-72709 (SPIP). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
SPIP	SPIP	—	—	—

Weaknesses

CWE-862

References (3)

https://blog.lexfo.fr/casse-spip-sqli-to-rce.html [technical-description, exploit]
https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-18.html [release-notes, patch]
https://www.vulncheck.com/advisories/spip-missing-authorization-via-ecrire-action-editer-auteur [third-party-advisory]

Authoritative record: CVE-2026-72709 at cve.org

Vendors: spip

Weaknesses: CWE-862

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-72709 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.