SPIP before 4.4.18 contains a missing authorization vulnerability in the administrative action endpoints under ecrire/action/ that allows… (CVE-2026-72709)
SPIP versions prior to 4.4.18 have a missing authorization vulnerability in administrative action endpoints under ecrire/action/. This flaw allows unauthenticated attackers to perform privileged actions by supplying a valid HMAC-SHA256 nonce without server-side permission checks. Attackers can reset any user account password, including administrators, by invoking the editer_auteur action directly over HTTP.
AI Analysis
Technical Summary
SPIP before version 4.4.18 contains a missing authorization vulnerability (CWE-862) in the administrative action endpoints located under ecrire/action/. The vulnerability permits unauthenticated attackers to bypass permission checks by supplying a valid HMAC-SHA256 nonce, which can be computed for any action as the anonymous user. This allows direct invocation of privileged actions such as editer_auteur to reset passwords of any user account, including administrators, without proper authorization verification via the autoriser() function.
Potential Impact
Successful exploitation allows unauthenticated attackers to reset passwords of any user account, including administrator accounts, leading to full compromise of the affected SPIP installation. The vulnerability has a CVSS v3.1 score of 9.8, indicating critical severity with high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available in SPIP version 4.4.18. Users should upgrade to version 4.4.18 or later to remediate this vulnerability. No other mitigation guidance is provided or necessary as the vulnerability is resolved by the official patch.
SPIP before 4.4.18 contains a missing authorization vulnerability in the administrative action endpoints under ecrire/action/ that allows… (CVE-2026-72709)
Description
SPIP versions prior to 4.4.18 have a missing authorization vulnerability in administrative action endpoints under ecrire/action/. This flaw allows unauthenticated attackers to perform privileged actions by supplying a valid HMAC-SHA256 nonce without server-side permission checks. Attackers can reset any user account password, including administrators, by invoking the editer_auteur action directly over HTTP.
CVSS v3.1
Score 9.8critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
SPIP before version 4.4.18 contains a missing authorization vulnerability (CWE-862) in the administrative action endpoints located under ecrire/action/. The vulnerability permits unauthenticated attackers to bypass permission checks by supplying a valid HMAC-SHA256 nonce, which can be computed for any action as the anonymous user. This allows direct invocation of privileged actions such as editer_auteur to reset passwords of any user account, including administrators, without proper authorization verification via the autoriser() function.
Potential Impact
Successful exploitation allows unauthenticated attackers to reset passwords of any user account, including administrator accounts, leading to full compromise of the affected SPIP installation. The vulnerability has a CVSS v3.1 score of 9.8, indicating critical severity with high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available in SPIP version 4.4.18. Users should upgrade to version 4.4.18 or later to remediate this vulnerability. No other mitigation guidance is provided or necessary as the vulnerability is resolved by the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-px65-33x4-mwqq
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-72709"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
Threat ID: 6aa47eba55bf5e2cf58579af
Added to database: 09/11/2026, 22:20:42 UTC
Last enriched: 09/11/2026, 22:46:34 UTC
Last updated: 09/11/2026, 23:10:11 UTC
Views: 3
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