PT-2026-79386 · Spip · Spip

CVE-2026-77806

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Published

2026-08-20

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Updated

2026-09-04

CVSS v2.0

10

Critical

VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions SPIP versions prior to 4.4.21
Description Unauthenticated remote attackers can execute arbitrary code due to a code injection flaw. This issue occurs when the analyse resultat skel() function mishandles the X-Spip-Filtre HTTP request header. This flaw was exploited in the wild in August 2026.
Recommendations Update to version 4.4.21.

Exploit

Fix

RCE

Code Injection

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Weakness Enumeration

CWE-94

Related Identifiers

BDU:2026-13475
CVE-2026-77806

Affected Products

Spip