CVE-2025-7955 in Communications Plugin
Summary
by MITRE • 08/28/2025
The RingCentral Communications plugin for WordPress is vulnerable to Authentication Bypass due to improper validation within the ringcentral_admin_login_2fa_verify() function in versions 1.5 to 1.6.8. This makes it possible for unauthenticated attackers to log in as any user simply by supplying identical bogus codes.
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Analysis
by VulDB Data Team • 08/30/2025
The vulnerability identified as CVE-2025-7955 affects the RingCentral Communications plugin for WordPress, specifically targeting versions between 1.5 and 1.6.8. This authentication bypass flaw stems from inadequate input validation within the ringcentral_admin_login_2fa_verify() function, creating a critical security weakness that undermines the plugin's two-factor authentication mechanism. The vulnerability allows unauthenticated attackers to gain administrative access to WordPress sites by exploiting a flaw in the verification process that does not properly validate the authentication codes provided during the login sequence.
The technical implementation of this vulnerability resides in the improper validation logic of the two-factor authentication verification function. When users attempt to log in with a two-factor authentication code, the system fails to properly validate the authenticity of the code before granting access privileges. This flaw essentially renders the two-factor authentication protection ineffective, as attackers can supply any arbitrary code and still gain access to the administrative interface. The vulnerability operates at the application layer and specifically targets the authentication flow within the WordPress plugin ecosystem, making it particularly dangerous for organizations relying on the plugin for communication services integration.
From an operational perspective, this vulnerability presents a severe risk to WordPress installations using the affected RingCentral plugin. Attackers can exploit this weakness to escalate privileges from unauthenticated users to full administrative access, potentially leading to complete compromise of the WordPress site. The impact extends beyond simple unauthorized access as attackers could modify content, install malicious plugins, access sensitive data, or even use the compromised site as a launching point for further attacks within the network. The vulnerability's exploitation requires minimal technical skill and no prior authentication credentials, making it particularly attractive to automated attack tools and malicious actors seeking to compromise WordPress installations.
The vulnerability maps directly to CWE-287, which addresses improper authentication issues, and aligns with ATT&CK technique T1078.004 related to valid accounts and credential access. Organizations using this plugin should immediately update to version 1.6.9 or later, which contains the necessary patches to address the validation flaw. Additionally, administrators should implement network monitoring to detect unusual authentication patterns and consider temporarily disabling the plugin until the update is applied. The remediation process involves not only updating the plugin but also reviewing and rotating all administrative credentials, as the vulnerability allows attackers to assume any user identity within the system. Security teams should also conduct comprehensive audits of their WordPress installations to identify other potentially vulnerable plugins and ensure proper input validation across all authentication mechanisms.