CVE-2026-27746SPIP jeux < 4.1.1 Reflected XSS via index Parameters

Description

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/ technical-descriptionexploitThird Party Advisory
• https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.html vendor-advisoryRelease Notes
• https://plugins.spip.net/jeux productProduct
• https://git.spip.net/spip-contrib-extensions/jeux/-/commit/3d240cffb258491acd72f8b37579e8a7417740ff patchPatch
• https://www.vulncheck.com/advisories/spip-jeux-reflected-xss-via-index-parameters third-party-advisoryThird Party Advisory