CVE-2026-77806

SPIP before 4.4.21 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to code injection via an X-Spip-Filtre HTTP request header that is mishandled by analyse_resultat_skel.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-21.html
https://github.com/rapid7/metasploit-framework/pull/21790
https://github.com/rapid7/metasploit-framework/pull/21790#issuecomment-5368038123
https://github.com/rapid7/metasploit-framework/pull/21790/commits/b16eca819abb8f1401f21d115e71e3dfc67b847c

Configurations

No configuration.

History

15 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) SPIP anterior a la versión 4.4.21 permite a atacantes remotos no autenticados ejecutar código arbitrario, según se explotó activamente en agosto de 2026. Esto está relacionado con la inyección de código a través de un encabezado de solicitud HTTP X-Spip-Filtre que es mal manejado por analyse_resultat_skel.

Information

Published : 2026-08-21 14:16

Updated : 2026-10-15 19:10

NVD link : CVE-2026-77806

Mitre link : CVE-2026-77806

CVE.ORG link : CVE-2026-77806

JSON object : View

Products Affected

No product.

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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