SPIP < 4.4.18 Code Injection via Navigation Endpoint on SQLite
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
SPIP before 4.4.18 contains a code injection vulnerability in SQLite-backed installations. The navigation menu endpoint improperly handles array-typed user input, which bypasses input sanitization and allows the value to break out of an internal quoted string context when evaluated as PHP. An authenticated attacker with at minimum editor (redacteur) privileges can submit a single crafted GET request to /ecrire/?exec=navigation to execute arbitrary OS commands in the web server process. MySQL-backed installations are not affected.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA SPIP (SPIP) Fixed in 4.4.18
Timeline
- 2026-10-02 Threatist record created from CVE-2026-66738
- 2026-10-03 Alias added: GHSA-ghch-c3xx-8rq5
References
Other 1
More SPIP vulnerabilities
- TI-2023-12107 SPIP before 4.2.1 allows Remote Code Execution via form values in the public area because… CVSS 3.1CRITICAL 9.8
- TI-2024-07895 SPIP Bigup Multipart File Upload OS Command Injection CVSS 3.1CRITICAL 9.8
- TI-2024-07375 SPIP porte_plume Plugin Arbitrary PHP Execution CVSS 3.1CRITICAL 9.8
- TI-2026-50946 SPIP < 4.4.18 RCE via editer_objet.php Job Queue Injection CVSS 4.0CRITICAL 9.3
- TI-2026-50945 SPIP < 4.4.18 Missing Authorization via ecrire/action/ CVSS 4.0CRITICAL 9.3
- TI-2026-22104 SPIP tickets < 4.3.3 Unauthenticated RCE CVSS 4.0CRITICAL 9.3
Sources
- CVE-2026-66738 · CVE Program
- CVE-2026-66738 · NVD
- FIRST EPSS
- GHSA-ghch-c3xx-8rq5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences