RCE in Spip
CVE-2026-8429
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.009 · change: +0.004
Affected products
- Spip — versions 0
Weakness classification (CWE)
References
- blog.spip.net/ (vendor-advisory)
- www.vulncheck.com/advisories/spip-prior-to-remote-code-execution-via-private-sp… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-8429?
- CVE-2026-8429 is a high-severity vulnerability in Spip, classified under Code Injection. CVSS score: 8.8/10. Published 2026-05-12.
- How severe is CVE-2026-8429?
- High severity. CVSS v3 base score is 8.8 out of 10.