CVE-2026-27474

Medium

Description

SPIP before 4.4.9 allows Cross-Site Scripting (XSS) in the private area, complementing an incomplete fix from SPIP 4.4.8. The echappe_anti_xss() function was not systematically applied to input, form, button, and anchor (a) HTML tags, allowing an attacker to inject malicious scripts through these elements. This vulnerability is not mitigated by the SPIP security screen.

SeverityMedium

CVSS6.1

Exploit probability—

Product

Spip

PublishedFeb 19, 2026

First seenFeb 19, 2026

How to fix

Update

spip spip4.4.9 or later

Patches

blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html

Affected products

Product	Affected versions	Fixed in
spip spip	4.4.0 ≤ v < 4.4.9	4.4.9

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