by Kastro
Paper/Archive/CVE-2026-8430

CVE-2026-8430

SPIP SPIP — SPIP < 4.4.14 Remote Code Execution via nginx

EPSS 0.4%CVSS 9.2
critical.is priorityof 100
35
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 37.8.378 × 207.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
SPIP< 4.4.144.4.14CNA

Scores by source

VulnCheck (CNA)9.2CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
VulnCheck (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

advisoryblog.spip.netwriteupvulncheck.com/advisories/spip-prior-to-remote-code-execution-via-nginx