Vulnerability · Published Oct 11, 2026 · Assigned by WPScan
CVE-2026-84258click5 CRM add-on to Ninja Forms <= 1.0.1 - Unauthenticated Stored XSS via post_notifications
High 8.8
In plain English
A high-severity cross-site scripting in click5 CRM add-on to Ninja Forms from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 77.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The click5 CRM add-on to Ninja Forms WordPress plugin through 1.0.1 does not sanitise and escape content submitted through an unauthenticated endpoint before outputting it back in an admin page, leading to Stored XSS which could be used against high privilege users such as admin.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | click5 CRM add-on to Ninja Forms | 0 – through 1.0.1 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://wpscan.com/vulnerability/3eae023f-a0fe-4313-9aee-18a8933eedb3/ exploit, vdb-entry, technical-description