What’s Vulnerable › Vulnerabilities

CVE-2024-8517: SPIP Bigup Multipart File Upload OS Command Injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 94.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-09-06 · updated 2026-10-29
• Weakness: CWE-73

Description

SPIP before 4.3.2, 4.2.16, and 4.1.18 is vulnerable to a command injection issue. A remote and unauthenticated attacker can execute arbitrary operating system commands by sending a crafted multipart file upload HTTP request.

Affected products

• SPIP: from 4.0.0 before 4.1.18; from 4.2.0 through 4.2.15; 4.3.0, 4.3.1 (and their updates) — fixed in 4.1.18
• SPIP: from 4.3.0 through 4.3.1; from 4.2.0 through 4.2.15; before 4.1.18 — fixed in 4.1.18
• SPIP: from 4.3.0 through 4.3.1; from 4.2.0 through 4.2.15; from 4.1.0 before 4.1.18 — fixed in 4.1.18

How to fix

Upgrade to a fixed version: SPIP 4.1.18; SPIP 4.1.18; SPIP 4.1.18. Check the vendor advisory for mitigations.

References

• https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-3-2-SPIP-4-2-16-SPIP-4-1-18.html
• https://thinkloveshare.com/hacking/spip_preauth_rce_2024_part_2_a_big_upload/
• https://vozec.fr/researchs/spip-preauth-rce-2024-big-upload/
• https://vulncheck.com/advisories/spip-upload-rce

Get alerted when CVE-2024-8517 or the next vulnerability affects your stack