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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Active
User action required
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/
disclosure@vulncheck.com
https://git.spip.net/spip-contrib-extensions/jeux/-/commit/3d240cffb258491acd72…
disclosure@vulncheck.com
https://plugins.spip.net/jeux
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/spip-jeux-reflected-xss-via-index-paramete…
disclosure@vulncheck.com