CVE-2026-18056

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Source
https://cve.org/CVERecord?id=CVE-2026-18056
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18056.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-18056
Published
2026-09-06T02:26:51Z
Modified
2026-09-08T03:30:58Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
HivePress Authentication <= 1.1.4 - Unauthenticated Authentication Bypass via 'access_token' Parameter to Facebook Authenticator
Details

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.

Database specific 
{
    "cna_assigner": "Wordfence",
    "cwe_ids": [
        "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18056.json"
}
References

Affected packages

Git / github.com/hivepress/hivepress-authentication

Affected ranges

Type
GIT
Repo
https://github.com/hivepress/hivepress-authentication
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f97d9109002905cf57597d15c535d1155dc64657
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.1.4"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18056.json"