Quick answers
- Is CVE-2026-84259 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-84259 being exploited in the wild.
- How severe is CVE-2026-84259?
- High severity, with a CVSS score of 8.8, published 11 October 2026.
- Which products and versions are affected?
- Click5 CRM add-on for WPForms through 1.0.3.
- Is there a fix for CVE-2026-84259?
- 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-2026-84259 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-84259?
- Check whether you run Click5 CRM add-on for WPForms 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 plugin fails to sanitize and escape user-supplied content from an unauthenticated endpoint before displaying it in the WordPress admin panel, resulting in Stored XSS (CWE-79). An unauthenticated attacker can submit malicious JavaScript through the vulnerable endpoint, which is then executed in the context of a high-privilege admin user's browser when they access the affected admin page. The vulnerability requires no authentication or user interaction beyond viewing the admin page where the stored payload is rendered.
Affected products
- Click5 CRM add-on for WPForms through 1.0.3
Timeline
- 2026-10-09: disclosed
- 2026-10-11: advisory