๐Ÿ” CVE Alert

CVE-2026-77647

CRITICAL 9.8
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

SPIP before 4.4.20 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to incorrect identification of <?php blocks, and var_export's mishandling of certain cases such as presence of a '<' character.

CWE CWE-94
Vendor spip
Product spip
Published Aug 20, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

SPIP / SPIP
0 < 4.4.20

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
blog.spip.net: https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-20.html lists.debian.org: https://lists.debian.org/debian-security-announce/2026/msg00359.html