CVE-2026-26223

Medium

Description

SPIP before 4.4.8 allows cross-site scripting (XSS) in the private area via malicious iframe tags. The application does not properly sandbox or escape iframe content in the back-office, allowing an attacker to inject and execute malicious scripts. The fix adds a sandbox attribute to iframe tags in the private area. 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 spip4.4.8 or later

Patches

blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-8.html

Affected products

Product	Affected versions	Fixed in
spip spip	4.4.0 ≤ v < 4.4.8	4.4.8

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