{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-93757",
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "state": "PUBLISHED",
        "assignerShortName": "Wordfence",
        "dateReserved": "2026-09-18T16:43:42.651Z",
        "datePublished": "2026-10-29T03:39:15.801Z",
        "dateUpdated": "2026-10-29T03:39:15.801Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
                "shortName": "Wordfence",
                "dateUpdated": "2026-10-29T03:39:15.801Z"
            },
            "affected": [
                {
                    "vendor": "wild-apricot",
                    "product": "Wild Apricot Login",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "1.0.18",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The Wild Apricot Login plugin for WordPress is vulnerable to Authentication Bypass via SSO Email-Collision Account Binding in all versions up to, and including, 1.0.18. When no WildApricot contact-ID mapping is found for an incoming SSO login, the plugin falls back to a network-global `get_user_by('email', ...)` lookup in `Module.php` to resolve a WordPress user, then `UserSynchronizer::syncWaContact()` binds and `Controller::login()` issues a session cookie via `wp_set_auth_cookie()` for that resolved user — both guarded only by `is_super_admin()` — without ever requiring proof of ownership of the matched WordPress account such as a password, local account-linking confirmation, inbox verification, or administrator approval. This makes it possible for attackers with custom-level WildApricot membership access to authenticate as an existing WordPress subsite administrator on a path-based Multisite network, obtaining a valid network-global authentication cookie for the victim without their credentials. Exploitation requires that the attacker control a WildApricot contact whose email address matches the target WordPress administrator's email — achievable via a public zero-fee membership application on the connected WildApricot organization — and that they complete the SSO flow on any subsite where Wild Apricot Login is active; because WordPress user identities and authentication cookies are network-global, the cookie issued on that subsite is equally valid on any other subsite where the victim user holds an administrator role."
                }
            ],
            "title": "Wild Apricot Login <= 1.0.18 - Authentication Bypass via SSO Email-Collision Account Binding on Multisite",
            "references": [
                {
                    "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9adbe55e-f1a1-4fa8-b28d-539d90d81c68?source=cve"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Authorization/WaLogin/Controller.php#L347"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Core/WaApi/Client.php#L22"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Core/Module.php#L159"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Synchronization/UserSynchronizer.php#L36"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Core/Module.php#L112"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-287 Improper Authentication",
                            "cweId": "CWE-287",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 7.5,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "zickzick2"
                }
            ],
            "timeline": [
                {
                    "time": "2026-10-28T14:44:24.000Z",
                    "lang": "en",
                    "value": "Disclosed"
                }
            ]
        }
    }
}