Is CVE-2026-18056 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-18056 being exploited in the wild.

How severe is CVE-2026-18056?

High severity, with a CVSS score of 7.5, published 6 September 2026.

Which products and versions are affected?

HivePress Authentication up to and including 1.1.4.

Is there a fix for CVE-2026-18056?

A patch was published on 2026-09-06: Fix committed to repository Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-18056 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-18056?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-18056: HivePress Authentication Facebook token bypass in user login

CVE-2026-18056 · Severity: high · CVSS 7.5 · Published 2026-09-06

The HivePress Authentication plugin for WordPress allows attackers to bypass login security by submitting a Facebook access token without proper validation. If an attacker obtains a user's valid Facebook token, they can authenticate as that user on any WordPress site using this plugin, including administrator accounts. This provides a path to account takeover and full site compromise.

Quick answers

Is CVE-2026-18056 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-18056 being exploited in the wild.
How severe is CVE-2026-18056?: High severity, with a CVSS score of 7.5, published 6 September 2026.
Which products and versions are affected?: HivePress Authentication up to and including 1.1.4.
Is there a fix for CVE-2026-18056?: A patch was published on 2026-09-06: Fix committed to repository Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-18056 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-18056?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in the authenticate_user function's Facebook authenticator, which forwards an attacker-supplied access_token to the Facebook Graph API and trusts the returned email and ID without validation. The plugin fails to perform /debug_token verification and does not compare the token's app_id against the configured hp_facebook_app_id. This allows unauthenticated attackers to forge authentication for any WordPress user whose email is associated with a Facebook account, provided the attacker possesses or can obtain a valid access token for that Facebook account. The vulnerability affects all versions up to and including 1.1.4, and a fix has been committed to the project repository.

Affected products

HivePress Authentication up to and including 1.1.4

Timeline

2026-09-06: disclosed
2026-09-06: patched: Fix committed to repository

References

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