CVE-2026-84258

click5 CRM add-on to Ninja Forms <= 1.0.1 - Unauthenticated Stored XSS via post_notifications

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

click5 CRM add-on to Ninja Forms

CVSS v3.1 CNA

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.30% chance of exploitation in the next 30 days, 22nd percentile

Published

2026-10-11

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/3eae023f-a0fe-4313-9aee-18a8933eedb3/

References

• CVE Record
• NVD entry