CVE-2026-103898
Wp Social Login and Register Social Counter <= 3.2.2 - Unauthenticated Authentication Bypass via Insufficient Email Verification in Social Login Callback
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($getProfile->emailVerified) in inc/admin-create-user.php — is a no-op for the bundled Hybridauth Facebook and Twitter adapters, both of which assign the raw email string rather than a boolean verified flag to emailVerified. This makes it possible for unauthenticated attackers to obtain a fully authenticated session as any existing WordPress user, including Administrators, whose registered email address can be presented through a configured Facebook or Twitter login on the target site. Exploitation requires only that the attacker control an OAuth account whose provider-returned email matches the target account's registered WordPress email address; no local credentials, nonce, or prior foothold is needed.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
8.1
Wp Social Login and Register Social Counter <= 3.2.2 - Unauthenticated Authentication Bypass via Insufficient Email Verification in Social Login Callback
The Wp Social Login and Register Social Counter plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.2.2. This is due to the social login REST callback registered at /wp-json/wslu-social-login/type/{provider}/ with permission_callback => __return_true locating an existing WordPress account solely by the email string returned from the OAuth provider and calling wp_set_auth_cookie() without a password check, while the only verification guard — !empty($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.
- Record
CVE-2026-103898- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-287
- Updated
- 2026-11-03
EUVDEUVD-2026-114656
8.1
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($getProfile->emailVerified) in inc/admin-create-user.php — is a no-op for the bundled Hybridauth Facebook and Twitter adapters, both of which assign the raw email string rather than a boolean verified flag to emailVerified. This makes it possible for unauthenticated attackers to obtain a fully authenticated session as any existing WordPress user, including Administrators, whose registered email address can be presented through a configured Facebook or Twitter login on the target site. Exploitation requires only that the attacker control an OAuth account whose provider-returned email matches the target account's registered WordPress email address; no local credentials, nonce, or prior foothold is needed.
- Record
EUVD-2026-114656- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-g8pp-vmv3-x6hw
8.1
The Wp Social Login and Register Social Counter plugin for WordPress is vulnerable to...
The Wp Social Login and Register Social Counter plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.2.2. This is due to the social login REST callback registered at /wp-json/wslu-social-login/type/{provider}/ with permission_callback => __return_true locating an existing WordPress account solely by the email string returned from the OAuth provider and calling wp_set_auth_cookie() without a password check, while the only verification guard — !empty($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.
- Record
GHSA-g8pp-vmv3-x6hw- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-287
- Updated
- 2026-11-02
NVD
8.1
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.
- Record
CVE-2026-103898- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-287
- Updated
- 2026-11-03
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | CVE List, NVD | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-103898 is a high vulnerability (CVSS 8.1) in Roxnor Wp Social Login And Register Social Counter, published October 31, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.44%, the 38th percentile. No source names a fixed version.
References
wordfence.com/threat-intel/vulnerabilities/id/e961d3db-da5e-4bde-ae7e-04e6ba3ebef4?source=cve
plugins.trac.wordpress.org/browser/wp-social/tags/3.2.1/inc/admin-create-user.php
plugins.trac.wordpress.org/browser/wp-social/tags/3.2.1/inc/admin-rest-api.php
plugins.trac.wordpress.org/browser/wp-social/tags/3.2.1/lib/composer/vendor/hybridauth/hybridauth/src/Provider/Facebook.php
plugins.trac.wordpress.org/browser/wp-social/tags/3.2.1/lib/composer/vendor/hybridauth/hybridauth/src/Provider/Twitter.php
plugins.trac.wordpress.org/changeset?reponame=&old=3752566%40wp-social&new=3752566%40wp-social
nvd.nist.gov/vuln/detail/CVE-2026-103898
github.com/advisories/GHSA-g8pp-vmv3-x6hw