Arbitrary Code Injection Affecting spip package, versions <4.4.19+dfsg-0+deb13u1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.4% (33rd percentile)

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  • Snyk IDSNYK-DEBIAN13-SPIP-18609734
  • published11 Aug 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

NewCVE-2026-66738  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade Debian:13 spip to version 4.4.19+dfsg-0+deb13u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream spip package and not the spip package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1