Summary
generated automatically from NVD dataThe Form Notify plugin for WordPress, in versions up to and including 1.1.10, has an authentication bypass (CWE-287) in its LINE OAuth login. When LINE returns no email address, the plugin takes the account to log in from the user-controlled 'form_notify_line_email' cookie without checking that the LINE account matches that email. An unauthenticated attacker can complete a LINE OAuth flow with their own account while injecting a victim's email in the cookie, gaining access to any user account, including administrators. The CVSS v3.1 score is 9.8 (CRITICAL).
NVD 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 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.
EPSS · FIRST.org
1.1%probability of exploitation in the next 30 days
Higher than 65% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 15 mai 2026
- Updated
- 17 juin 2026
- Status
- Deferred
- Source
- security@wordfence.com
Weaknesses (CWE)
References (10)
Similar CVEs
Other vulnerabilities of type CWE-287
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