CVE Catalog

CVE-2026-18056

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.34%

27th percentile - higher than 27% of all known CVEs

Summary

The HivePress Authentication plugin for WordPress up to version 1.1.4 is vulnerable to authentication bypass via the access_token parameter. The authenticate_user function trusts responses from Facebook Graph API without verifying the application ID, allowing unauthenticated attackers to log in as any WordPress user, including administrators, if they have the victim's access token.

Risk Assessment

An attacker could take over an administrator account, leading to full compromise of the WordPress site.

Recommendation

Update the plugin immediately and implement token verification mechanisms (debug_token) and app_id comparison.

Related vulnerabilities

Original NVD description (English source)

The HivePress Authentication plugin for WordPress is vulnerable to Authentication Bypass via the access_token parameter in all versions up to, and including, 1.1.4. This is due to the authenticate_user function's Facebook authenticator resolving third-party identity by forwarding the attacker-supplied access_token to the Facebook Graph API and trusting the returned email and ID verbatim, without performing any application ID or audience validation — specifically, no /debug_token verification and no comparison of the token's app_id against the configured hp_facebook_app_id. This makes it possible for unauthenticated attackers to authenticate as any existing WordPress user, including administrators, whose email address is associated with a Facebook account for which the attacker can obtain any valid access token. Important Note: To exploit the vulnerability, the attacker must obtain the victim's access token.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS