Quick answers
- Is CVE-2026-96876 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-96876 being exploited in the wild.
- How severe is CVE-2026-96876?
- Informational severity, published 25 September 2026.
- Which products and versions are affected?
- Wikimedia Cargo extension through 3.9.4.
- Is there a fix for CVE-2026-96876?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-96876 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-96876?
- Check whether you run Wikimedia Cargo extension at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a reflected XSS issue caused by improper neutralization of user-supplied input during web page generation in the Cargo extension. It allows an attacker to inject malicious JavaScript that executes in the context of a victim's browser session without requiring authentication. The flaw affects Cargo extension versions through 3.9.4.
Affected products
- Wikimedia Cargo extension through 3.9.4
Timeline
- 2026-09-25: disclosed