CRITICALVulnerability
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NVD CRITICAL: CVE-2026-72709 — SPIP before 4.4.18 contains a missing authorization vulnerability in the adminis...

·Source: NIST NVD

Updated:

Executive Summary

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_au

Analysis

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. CVSS Score: 9.8. Published: 2026-09-11T17:18:58.760.

Indicators of Compromise (1)

CVE (1)
CVE-2026-72709
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Sep 11, 2026. Verified by: NIST.

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