Reported vulnerability

Receive Notifications After Form Submitting – Form Notify for Any Forms <= 1.1.10 - Unauthenticated Authentication Bypass via LINE OAuth Callback

Q: Which versions of Receive Notifications After Form Submitting – Form Notify for Any Forms are affected?

Wordfence lists these affected versions: Start version unspecified, through 1.1.10. Use the version checker above to compare your installed release with this report.

Q: Is a fix available for Receive Notifications After Form Submitting – Form Notify for Any Forms?

Wordfence reports a fix for this issue in Receive Notifications After Form Submitting – Form Notify for Any Forms. It lists these fixed versions: 1.1.11. Back up your website and test the recommended update before applying it to your live site.

Q: Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Published 14 May 2026

Updated 15 May 2026

CVE-2026-5229

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.

Wordfence advisory

critical · CVSS 9.8

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 unauthenticated attackers to gain access to any user account on the site, including administrator accounts, by completing a LINE OAuth flow with their own LINE account while injecting a malicious cookie containing the target victim's email address.

Severity vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Receive Notifications After Form Submitting – Form Notify for Any Forms

Software: plugin · form-notify
Affected versions: Start version unspecified, through 1.1.10
Fix availability: Fix available
Fixed versions: 1.1.11

Recommended action

Update to version 1.1.11, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/2f0a7d6f-9b95-4052-bab3-85aca01f6ab7?source=api-prod

Data sources and licences

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CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Read licence terms

Source: Wordfence

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Questions about this vulnerability

Which versions of Receive Notifications After Form Submitting – Form Notify for Any Forms are affected?

Wordfence lists these affected versions: Start version unspecified, through 1.1.10. Use the version checker above to compare your installed release with this report.

Is a fix available for Receive Notifications After Form Submitting – Form Notify for Any Forms?

Wordfence reports a fix for this issue in Receive Notifications After Form Submitting – Form Notify for Any Forms. It lists these fixed versions: 1.1.11. Back up your website and test the recommended update before applying it to your live site.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

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