CVE-2026-27746 SPIP jeux < 4.1.1 Reflected XSS via index Parameters
Attackers can inject arbitrary scripts into SPIP pages via crafted URLs, executing code in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-27746?
CVE-2026-27746 is a medium-severity cross-site scripting vulnerability in SPIP jeux, published on 25 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-27746?
It affects 1 product.
Products include Spip Jeux.
How do I fix CVE-2026-27746?
No fix has been published for CVE-2026-27746 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-27746 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27746 exists.
Sources
Also known as GHSA-8vx8-439w-j8j5.