Summary
| Parameter | Value |
|---|---|
| CVE ID | CVE-2026-5229 |
| Alert Source | GitHub Advisory - Critical Vulnerability |
| CVE Publication Year | 2026 |
| Date Published | 2026-05-15 |
| Vendor | WordPress |
| Product | Form Notify (plugin) |
| CVSS Score | 9.8 (critical) |
| EPSS Score | No data |
| CISA KEV | No |
| Ransomware | Not confirmed |
Vulnerability Description
The Form Notify plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.1.10. This is due to the plugin trusting user-controlled cookie data to determine which WordPress account to authenticate after a LINE OAuth login. When LINE doesn’t provide an email address (which is common), the plugin falls back to reading the ‘form_notify_line_email’ cookie value without verifying that the LINE account is associated with that email address. This makes it possible for…
Required Actions
Apply vendor patches or mitigations as soon as available.
Who Is Affected?
This vulnerability affects Form Notify (plugin) by WordPress. Check if your organization uses this software and requires updates.
Sources
Need help securing your systems? nFlo team offers vulnerability management and 24/7 SOC services. Contact us.
