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CVE-2025-3746: Critical Vulnerability in WordPress OTP-less One Tap Sign In Plugin

A critical privilege escalation vulnerability exists in the OTP-less One Tap Sign In plugin for WordPress, affecting versions 2.0.14 to 2.0.59. Unauthenticated attackers can exploit this flaw to take over user accounts, including administrators. Immediate patching is essential to mitigate this risk.

CRITICALCVSS 9.8 · Published May 2, 2025

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The OTP-less one tap Sign in plugin for WordPress is vulnerable to privilege escalation via account takeover in versions 2.0.14 to 2.0.59. This vulnerability allows attackers to exploit the plugin's failure to validate a user's identity before updating their details, such as email addresses. As a result, unauthenticated attackers can modify arbitrary users' email addresses, including those of administrators. This manipulation facilitates password reset requests, enabling attackers to gain unauthorized access to user accounts.

Moreover, the plugin's response mechanism includes returning authentication cookies, which further enhances the attack surface by allowing direct account access. Given its critical CVSS score of 9.8, the urgency for organizations to patch this vulnerability is paramount.

Organizations should prioritize patching immediately to prevent potential exploitation of this vulnerability. The implications of this flaw underscore the necessity for rigorous validation processes in user authentication mechanisms within WordPress plugins.

With the increasing reliance on plugins for extending functionality, ensuring their security is crucial to maintaining the integrity of WordPress installations.

Vulnerability Details

This vulnerability allows privilege escalation due to improper identity validation within the OTP-less one tap Sign in plugin. The CVSS score is 9.8, indicating a critical level of severity. The affected versions include 2.0.14 through 2.0.59. The vulnerability was published on May 2, 2025, and is classified under CWE-862.

Technical Analysis

The root cause of this vulnerability stems from the plugin's failure to properly validate user identities before allowing changes to their details. This oversight allows attackers to leverage network access to exploit the vulnerability, requiring no privileges or user interaction to execute the attack. The impact of this vulnerability is severe, affecting confidentiality, integrity, and availability, as unauthorized access to user accounts can lead to further compromises.

Risk & Impact Analysis

Risk to organizations includes unauthorized access to user accounts, which can lead to data breaches and loss of sensitive information. The blast radius is significant, as administrators' accounts can be compromised, potentially affecting entire systems. Given the critical severity and the lack of known exploits, organizations should address this vulnerability in their priority patch cycle.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The affected versions of the OTP-less one tap Sign in plugin range from 2.0.14 to 2.0.59. Organizations using these versions should take immediate action to apply the necessary patches.

Mitigation & Remediation

To mitigate this vulnerability, organizations should upgrade to the latest version of the OTP-less one tap Sign in plugin. If a patch is unavailable, consider implementing additional authentication measures and monitoring user account changes closely. For further guidance on securing plugins, organizations can refer to application security assessment practices.

Detection Guidance

Organizations should monitor logs for unusual authentication attempts and changes to user account details, particularly email addresses. Behavioral anomalies, such as sudden changes in user access patterns, can also indicate exploitation attempts. Implementing network signatures that flag unauthorized changes can help detect potential breaches.

AppSecure Threat Intelligence Insight

This vulnerability highlights the critical need for secure coding practices in plugin development. As attackers continually seek to exploit weak authentication mechanisms, organizations must ensure that their plugins are rigorously tested for security vulnerabilities. Security teams should prioritize training on secure development practices to prevent similar vulnerabilities in the future.

Additionally, organizations can benefit from implementing a penetration testing strategy to identify vulnerabilities before they can be exploited.

Finally, the implementation of comprehensive security measures, including regular audits, can significantly reduce the risk of vulnerabilities being exploited by malicious actors.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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