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CVE-2026-103898

HIGH 8.1 CVSS 3.1
Published
October 31, 2026
Last modified
November 3, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-287
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The Wp Social Login and Register Social Counter plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.2.2. This is due to the social login REST callback registered at `/wp-json/wslu-social-login/type/{provider}/` with `permission_callback => __return_true` locating an existing WordPress account solely by the email string returned from the OAuth provider and calling `wp_set_auth_cookie()` without a password check, while the only verification guard — `!empty($getProfile->emailVerified)` in `inc/admin-create-user.php` — is a no-op for the bundled Hybridauth Facebook and Twitter adapters, both of which assign the raw email string rather than a boolean verified flag to `emailVerified`. This makes it possible for unauthenticated attackers to obtain a fully authenticated session as any existing WordPress user, including Administrators, whose registered email address can be presented through a configured Facebook or Twitter login on the target site. Exploitation requires only that the attacker control an OAuth account whose provider-returned email matches the target account's registered WordPress email address; no local credentials, nonce, or prior foothold is needed.

Affected WordPress components

  • Wp Social Login and Register Social Counter Plugin · wp-social
    Confirmed match Active
    Up to and including 3.2.2
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • roxnor Wp Social Login and Register Social Counter — Up to and including 3.2.2

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-social/tags/3.2.1/inc/admin-create-user.php#L172
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-social/tags/3.2.1/inc/admin-create-user.php#L229
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-social/tags/3.2.1/inc/admin-create-user.php#L512
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-social/tags/3.2.1/inc/admin-rest-api.php#L46
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-social/tags/3.2.1/lib/composer/vendor/hybridauth/hybridauth/src/Provider/Facebook.php#L205
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-social/tags/3.2.1/lib/composer/vendor/hybridauth/hybridauth/src/Provider/Twitter.php#L102
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3752566%40wp-social&new=3752566%40wp-social
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/e961d3db-da5e-4bde-ae7e-04e6ba3ebef4?source=cve
  • nvd.nist.gov Official NVD record