SPIP < 4.4.22 - Unauthenticated RCE
CVE-2026-77806
Verified
Description
SPIP < 4.4.21 contains a remote code execution caused by mishandling of the X-Spip-Filtre HTTP request header in analyse_resultat_skel, letting unauthenticated remote attackers execute arbitrary code.
Severity
Critical
CVSS Score
9.8
Exploit Probability
4%
Published Date
August 25, 2026
Template Author
0x_akoko
CVE-2026-77806.yaml
9.8Score
CVSS Metrics
CVSS Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE ID:
cve-2026-77806
CWE ID:
cwe-94
Remediation Steps
Update to version 4.4.21 or later.