Quick answers
- Is CVE-2026-48966 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-48966 being exploited in the wild.
- How severe is CVE-2026-48966?
- High severity, with a CVSS score of 7.1, published 15 June 2026.
- Which products and versions are affected?
- FunnelKit Funnel Builder <= 3.15.0.2.
- Is there a fix for CVE-2026-48966?
- 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-2026-48966 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-48966?
- Check whether you run FunnelKit Funnel Builder 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
A Reflected Cross-Site Scripting (XSS) vulnerability exists in the Funnel Builder by FunnelKit plugin for WordPress (versions up to and including 3.15.0.2). The flaw stems from improper neutralization of user-supplied input during web page generation (CWE-79). An unauthenticated remote attacker can exploit this by tricking a user into clicking a malicious link or visiting a crafted page, leading to the execution of arbitrary JavaScript in the context of the victim's browser session. This can result in session hijacking or unauthorized actions performed on behalf of a logged-in administrator. The issue is resolved in version 3.15.0.3.
Affected products
- FunnelKit Funnel Builder by FunnelKit <= 3.15.0.2
Timeline
- 2026-05-08: other: Reported by Tiago Ventura (@perses)
- 2026-06-03: advisory: Patchstack advisory published
- 2026-06-15: disclosed: NVD publication date