9.8Critical

CVE-2026-77806

SPIP SPIP Published: 2026-08-21 16:37 (2 months ago)

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): CWE-94

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
SPIP	SPIP	< 4.4.21

References and patches

CVSS score

9.8Critical

Source: mitre · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

All scores (2)

cna	CVSS 3.1	9.8Critical
cve@mitre.org	CVSS 3.1	9.8Critical

EPSS (chance of exploitation in 30 days)

4.48%

higher than 92% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: yes
Technical impact: total

Timeline

ID reserved2026-08-21
Published2026-08-21 16:37
Reached IP-DB2026-10-24 23:47
Last updated2026-10-15 22:10

Assigned by (CNA): mitre
NVD status: Deferred

View at source: CVE.org · NVD

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