XSS in Spip Jeux
CVE-2026-27746
The SPIP jeux plugin versions prior to 4.1.1 contain a reflected cross-site scripting (XSS) vulnerability in the pre_propre pipeline. The plugin incorporates untrusted request parameters into HTML output without proper output encoding, allowing attackers to inject arbitrary script content into pages that render a jeux block. When a victim is induced to visit a crafted URL, the injected content is reflected into the response and executed in the victim's browser context.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (10.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Spip Jeux — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (technical-description, Third Party Advisory, exploit)
- disclosure@vulncheck.com (vendor-advisory, Release Notes)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-27746?
- CVE-2026-27746 is a medium-severity vulnerability in Spip Jeux, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-25.
- How severe is CVE-2026-27746?
- Medium severity. CVSS v3 base score is 6.1 out of 10.