RCE in Spip
CVE-2026-8430
SPIP versions prior to 4.4.14 contain a remote code execution vulnerability in the public space that is limited to certain nginx configurations, allowing attackers to execute arbitrary code in the context of the web server. Attackers can exploit this vulnerability through specific nginx configuration scenarios to achieve code execution, and this issue is not mitigated by the SPIP security screen.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (52.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003
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-nginx (third-party-advisory)
Frequently asked questions
- What is CVE-2026-8430?
- CVE-2026-8430 is a high-severity vulnerability in Spip, classified under Code Injection. CVSS score: 8.1/10. Published 2026-05-12.
- How severe is CVE-2026-8430?
- High severity. CVSS v3 base score is 8.1 out of 10.