What’s Vulnerable › Vulnerabilities
CVE-2026-77826: RegistrationMagic 5.0.1.8 - 6.0.9.8 - Unauthenticated Authentication Bypass via Missing Facebook Token Audience Validation
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-05 · updated 2026-09-08
- Weakness: CWE-287
Description
The RegistrationMagic WordPress plugin before 6.0.9.9 does not verify which application a Facebook access token was issued to before accepting it as proof of identity, allowing unauthenticated attackers to log in as an existing user whose token they can obtain, or to create and log into a new account even when user registration is disabled.
Affected products
- Metagauss RegistrationMagic: from 5.0.1.8 before 6.0.9.9 — fixed in 6.0.9.9
How to fix
Upgrade to a fixed version: Metagauss RegistrationMagic 6.0.9.9. Check the vendor advisory for mitigations.
References
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