CVE-2026-27474

Name	CVE-2026-27474
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
spip (PTS)	bullseye	3.2.11-3+deb11u10	vulnerable
	bullseye (security)	3.2.11-3+deb11u7	vulnerable
	trixie	4.4.3+dfsg-1+deb13u1	vulnerable
	forky	4.4.8+dfsg-1	vulnerable
	sid	4.4.9+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
spip	source	(unstable)	4.4.9+dfsg-1

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