Vulnerability · Published Aug 10, 2026 · Assigned by VulnCheck
CVE-2026-66738SPIP < 4.4.18 Code Injection via Navigation Endpoint on SQLite
High 8.8
In plain English
A high-severity code injection in SPIP from SPIP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | spip | 4.4.19+dfsg-0+deb13u1 | DEBIAN-CVE-2026-66738 |
| Debian:14 | spip | 4.4.18+dfsg-1 | DEBIAN-CVE-2026-66738 |
| Ubuntu:22.04:LTS | spip | no fix listed | UBUNTU-CVE-2026-66738 |
| Ubuntu:24.04:LTS | spip | no fix listed | UBUNTU-CVE-2026-66738 |
| Ubuntu:26.04:LTS | spip | no fix listed | UBUNTU-CVE-2026-66738 |
| Ubuntu:26.10 | spip | no fix listed | UBUNTU-CVE-2026-66738 |
Affected products (as reported)
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- Release Notes release-notes
- https://www.vulncheck.com/advisories/spip-code-injection-via-navigation-endpoint-on-sqlite third-party-advisory