CVE-2026-77001 in Social Login & Sharing buttons with Analytics Plugin
Summary
by MITRE • 08/22/2026
The Social Login & Sharing buttons with Analytics By SoClever WordPress plugin through 1.2.0 does not perform any authentication, authorisation or nonce checks in one of its publicly accessible login handlers, allowing unauthenticated attackers to obtain a valid session as any existing user, including administrators. In the default case a session as the site's original administrator account is obtained without needing to know any account details at all.
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Analysis
by VulDB Data Team • 08/22/2026
The vulnerability identified within the Social Login & Sharing buttons with Analytics By SoClever WordPress plugin versions up to 1.2.0 represents a critical failure in access control mechanisms, specifically categorized under CWE-287 Improper Authentication and CWE-345 Insufficient Verification of Data Authenticity. This flaw resides in one of the publicly accessible login handlers within the plugin's architecture, which is designed to facilitate user authentication through social media providers or other external identity sources. The core technical deficiency lies in the complete absence of security checks that are standard practice for any sensitive administrative action or session management operation in a WordPress environment. Specifically, the handler fails to validate nonces, which are unique tokens used to prevent Cross-Site Request Forgery and ensure that requests originate from legitimate users with valid sessions. Furthermore, it neglects to perform necessary authorization checks to verify if the requesting user has the permission to initiate such actions or manipulate session states for other accounts.
The operational impact of this vulnerability is severe due to its unauthenticated nature. An attacker does not need prior access credentials, nor do they require knowledge of any specific account details to exploit this flaw. By crafting a malicious request that targets the vulnerable endpoint, an adversary can bypass all standard authentication barriers and force the WordPress application to issue a valid session cookie for any existing user on the site. This capability effectively allows privilege escalation from unauthenticated access to full administrative control in many default configurations. In the most critical scenario described, the vulnerability enables an attacker to obtain a session as the original administrator account of the website without needing to know its username or password. This occurs because the handler likely defaults to creating a session for the primary admin user if no specific target is provided or if the logic fails to restrict the scope of the session creation properly.
This type of vulnerability aligns with several techniques in the MITRE ATT&CK framework, particularly T1078 Valid Accounts and T1528 Steal Application Access Token, although it manifests as a direct session hijacking via improper validation rather than token theft from an external provider. The lack of nonce verification also exposes the system to CSRF-like attacks where automated scripts can trigger this behavior without user interaction. Once an attacker holds a valid administrative session, they gain unrestricted access to all WordPress functionalities. This includes the ability to install malicious plugins, modify core files, exfiltrate sensitive database contents containing personal identifiable information and credentials of other users, and potentially achieve remote code execution by manipulating theme or plugin files through the admin dashboard. The persistence of this threat is high as long as the vulnerable version remains installed, allowing attackers to maintain a foothold in the compromised environment indefinitely unless detected and remediated.
Mitigation strategies must focus on immediate patching and defensive configuration changes. The primary remedy is to update the Social Login & Sharing buttons with Analytics By SoClever plugin to a version later than 1.2.0, where these authentication and authorization checks have presumably been implemented by the developers. Until an official patch is available or if updating is not immediately feasible, site administrators should consider disabling social login features that rely on the vulnerable handler if possible, or restricting access to WordPress admin endpoints via IP whitelisting for trusted networks only. Additionally, implementing a Web Application Firewall can help detect and block anomalous requests targeting authentication endpoints with missing nonces. Regular security audits focusing on input validation and session management logic are essential to prevent similar flaws in custom code or other third-party plugins that may follow insecure development patterns.