CVE-2026-77806

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CVSS 3.1

9.8 critical

EPSS

4%p90

Published

Aug 21, 2026 (25d ago)

Modified

Sep 8, 2026

Description

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.

Weakness: CWE-94
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (4.2%)

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