CVE-2026-92438 Ninja Forms - Stored XSS

Ninja Forms WordPress plugin 3.15.3 contains a stored XSS caused by unescaped submitted form field values on the submission edit screen, letting unauthenticated users execute scripts in high-privileged users' browsers, exploit requires form submission.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.35% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
22 September 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to the latest version of Ninja Forms.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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