CVE-2026-84258

HIGHCVSS 8.8/10EPSS 0.30%

Last modified

CVE-2026-84258 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.30%

21.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
Unknownclick5 CRM add-on to Ninja Forms<= 1.0.1

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-84258?
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.
How severe is CVE-2026-84258?
CVE-2026-84258 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.
How do I fix CVE-2026-84258?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST