Introduction
Attackers can gain full administrative access to WordPress sites running the RingCentral Communications Plugin by submitting matching bogus codes during two-factor authentication. The flaw, tracked as CVE-2025-7955, affects plugin versions 1.5 through 1.6.8 and puts thousands of business websites at risk of total compromise.
About RingCentral and the Plugin: RingCentral provides unified communications services to millions of business customers worldwide. Its WordPress plugin, RingCentral Communications, lets organizations add voice, messaging, and call management features directly to their WordPress sites. Users range from small businesses to large enterprises, so a security issue in the plugin reaches a wide spread of sites.
Technical Information
CVE-2025-7955 sits in the ringcentral_admin_login_2fa_verify function of the RingCentral Communications Plugin for WordPress, versions 1.5 through 1.6.8. The cause is improper server-side validation in the two-factor authentication (2FA) process. Instead of checking that the 2FA code is authentic, the function accepts any pair of identical codes as valid.
An unauthenticated attacker can therefore submit two matching bogus codes at the 2FA prompt, and the plugin will grant access as the targeted user. The flaw is classified as CWE-287 (Improper Authentication). The vulnerable logic is present in every affected version, and public advisories and plugin source references confirm the issue (wpsecurity.jp, Wordfence).
No public code snippet is available, but exploitation is trivial. Submitting any two identical codes at the 2FA step bypasses authentication and gives access to any account, including administrative ones.
Detection Methods
Detecting malware, especially malware that uses obfuscation, takes more than one technique. Malware authors often use comment abuse, variable functions, and string concatenation to evade detection. For instance, they might insert excessive comments inside code to break up malicious payloads, which makes it harder for signature-based scanners to identify them. (wordfence.com)
Strategies for detecting obfuscated malware include:
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Signature-Based Detection: Maintain a comprehensive database of malware signatures that accounts for common obfuscation techniques, with patterns that match malicious code even when comments or variable functions disguise it. (wordfence.com)
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Behavioral Analysis: Monitor scripts and applications for unexpected network requests, file modifications, or execution of unauthorized commands.
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Heuristic Analysis: Flag code structures and behaviors that deviate from the norm, which can catch new, previously unknown malware.
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Regular Updates: Keep detection tools and databases current so they recognize the latest obfuscation methods and malware variants.
Affected Systems and Versions
- Product: RingCentral Communications Plugin for WordPress
- Affected versions: 1.5 through 1.6.8
- Vulnerable configuration: Any WordPress site with the plugin enabled and 2FA active
Vendor Security History
RingCentral has updated its WordPress plugin on a regular cadence, and there is no public record of earlier authentication bypass vulnerabilities in this product. That CVE-2025-7955 survived across multiple versions suggests the development process needs more rigorous security review. No data on patch response time for this specific issue was available at the time of writing.
