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CVE-2026-72709— SPIP < 4.4.18 Missing Authorization via ecrire/action/

Quick assessment

Affected
SPIP SPIP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SPIP是法国SPIP组织开源的一套内容管理系统。 SPIP 4.4.18之前版本存在授权问题漏洞，该漏洞源于ecrire/action/下的管理操作端点缺少授权，未验证用户权限，未经验证的攻击者可通过提供有效的HMAC-SHA256随机数调用editer_auteur操作，可能导致重置任意用户账户密码，包括管理员账户。

CVSS 9.8 · Critical EPSS 0.66% · P52

Affected Version Matrix 1

VendorProduct Version RangeStatus
SPIP SPIP < 4.4.18 affected
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I. Basic Information for CVE-2026-72709

Vulnerability Information
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Vulnerability Title
SPIP < 4.4.18 Missing Authorization via ecrire/action/
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
SPIP 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SPIP是法国SPIP组织开源的一套内容管理系统。 SPIP 4.4.18之前版本存在授权问题漏洞，该漏洞源于ecrire/action/下的管理操作端点缺少授权，未验证用户权限，未经验证的攻击者可通过提供有效的HMAC-SHA256随机数调用editer_auteur操作，可能导致重置任意用户账户密码，包括管理员账户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SPIP SPIP 0 ~ 4.4.18 -

II. Public POCs for CVE-2026-72709

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III. Intelligence Information for CVE-2026-72709

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Vendor Advisories for CVE-2026-72709 (1)

Security Blog Posts for CVE-2026-72709 (2)

Same Patch Batch · SPIP · 2026-09-11 · 3 CVEs total

CVE-2026-72710 9.8 CRITICAL SPIP < 4.4.18 RCE via editer_objet.php Job Queue Injection
CVE-2026-72708 7.5 HIGH SPIP < 4.4.18 Unauthenticated Blind SQL Injection via sitemap.xml.html

IV. Related Vulnerabilities

Same product: SPIP
Same vendor: SPIP
Same weakness: CWE-862