Cross-site Scripting (XSS) Affecting spip package, versions <4.4.11+dfsg-0+deb13u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.17% (7th percentile)

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  • Snyk IDSNYK-DEBIAN13-SPIP-15322646
  • published20 Feb 2026
  • disclosed19 Feb 2026

Introduced: 19 Feb 2026

CVE-2026-26345  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Debian:13 spip to version 4.4.11+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 4.4.8 contains a stored cross-site scripting (XSS) vulnerability in the public area triggered in certain edge-case usage patterns. The echapper_html_suspect() function does not adequately sanitize user-controlled content, allowing authenticated users with content-editing privileges (e.g., author-level roles and above) to inject malicious scripts. The injected payload may be rendered across multiple pages within the framework and execute in the browser context of other users, including administrators. Successful exploitation can allow attackers to perform actions in the security context of the victim user, including unauthorized modification of application state. This vulnerability is not mitigated by the SPIP security screen.

CVSS Base Scores

version 3.1