Vulnerability · Published Feb 19, 2026 · Assigned by VulnCheck

CVE-2026-27474SPIP < 4.4.9 Cross-Site Scripting in Private Area (Incomplete Fix)

Medium 6.1

In plain English

A medium-severity security flaw in SPIP from SPIP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.3%top 78.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack tooling1Public PoC

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:13	spip	4.4.11+dfsg-0+deb13u1	DEBIAN-CVE-2026-27474
Debian:13	spip	4.4.11+dfsg-0+deb13u1	DSA-6155-1
Debian:14	spip	4.4.9+dfsg-1	DEBIAN-CVE-2026-27474
Ubuntu:22.04:LTS	spip	no fix listed	UBUNTU-CVE-2026-27474
Ubuntu:24.04:LTS	spip	no fix listed	UBUNTU-CVE-2026-27474
Ubuntu:25.10	spip	no fix listed	UBUNTU-CVE-2026-27474
Ubuntu:26.04:LTS	spip	no fix listed	UBUNTU-CVE-2026-27474

Affected products (as reported)

Vendor	Product	Versions
SPIP	SPIP	4.4.0 – before 4.4.9

References

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html vendor-advisory, patch
https://git.spip.net/spip/spip product
VulnCheck Advisory: SPIP < 4.4.9 Cross-Site Scripting in Private Area (Incomplete Fix) third-party-advisory