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.
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Mon, 07 Sep 2026 12:30:00 +0000
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ssvc
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Mon, 07 Sep 2026 08:45:00 +0000
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Hivepress
Hivepress hivepress Authentication Wordpress Wordpress wordpress |
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Hivepress
Hivepress hivepress Authentication Wordpress Wordpress wordpress |
Sun, 06 Sep 2026 02:45:00 +0000
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| Description | 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. | |
| Title | HivePress Authentication <= 1.1.4 - Unauthenticated Authentication Bypass via 'access_token' Parameter to Facebook Authenticator | |
| Weaknesses | CWE-287 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published: 2026-09-06T02:26:51.649Z
Updated: 2026-09-07T11:17:23.315Z
Reserved: 2026-07-28T13:00:05.931Z
Link: CVE-2026-18056
Updated: 2026-09-07T11:12:54.848Z
Status : Deferred
Published: 2026-09-06T03:17:16.467
Modified: 2026-09-08T13:12:58.310
Link: CVE-2026-18056
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