CVE-2026-8429: SPIP < 4.4.14 Remote Code Execution via Private Space

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-12 · updated 2026-06-17
Weakness: CWE-94

Description

SPIP versions prior to 4.4.14 contain a remote code execution vulnerability in the private space that allows attackers to execute arbitrary code in the context of the web server. Attackers can exploit this vulnerability to achieve code execution that bypasses the SPIP security screen protections.

Affected products

SPIP: before 4.4.14 — fixed in 4.4.14

How to fix

Upgrade to a fixed version: SPIP 4.4.14. Check the vendor advisory for mitigations.

References

https://blog.spip.net/
https://www.vulncheck.com/advisories/spip-prior-to-remote-code-execution-via-private-space

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