CVE-2025-4302 Scanner
CVE-2025-4302 Scanner - Authentication Bypass vulnerability in Stop User Enumeration WordPress plugin
Short Info
Level
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
10 days 23 hours
Scan only one
URL
Toolbox
The Stop User Enumeration WordPress plugin is a security tool commonly used by website administrators to prevent unauthorized access and user enumeration attempts. Developed by Fullworks, it is designed to enhance the security of WordPress sites by adding additional layers of protection. The plugin is especially popular among both small business owners and large enterprises looking to fortify their WordPress platforms. Its primary function is to secure user data and control access to sensitive endpoints on websites. By mitigating user enumeration vulnerabilities, the plugin supports maintaining the integrity of online applications. Particularly useful for those managing multiple user accounts on WordPress, it serves as a robust defense component against unauthorized activities.
The vulnerability in the Stop User Enumeration WordPress plugin pertains to an authentication bypass. This issue arises from the URL-encoding of the REST API path, which allows attackers to bypass user enumeration restrictions. Specifically, by crafting a special URL encoding, malicious actors can gain access to restricted API endpoints. Such vulnerabilities are often exploited by attackers to enumerate usernames or other sensitive information, potentially leading to further breaches. This issue highlights the importance of securing API endpoints against unauthorized access. It poses a moderate security risk, mainly affecting those using older plugin versions.
Technically, the vulnerability involves URL-encoding manipulation to bypass authentication mechanisms in the plugin's REST API. The specific endpoint affected is "/wp-json/wp/v2/users," where crafted URL requests can circumvent user checks. As discovered, the conditions exploited include modifications that trick the system into processing unauthorized requests as legitimate. Attackers typically look for indicators such as specific status codes or response types to confirm exploit success. Security mechanisms relying merely on strict path checks are vulnerable to such bypass attempts. The vulnerability primarily concerns an oversight in request validation and encoding, making it a technical concern for developers.
If exploited, this vulnerability could lead to unauthorized access to user information, exposing sensitive data. Attackers could utilize the disclosed data for malicious purposes, such as launching further attacks against the affected users or the server. User enumeration is a significant threat, as it can facilitate credential stuffing or brute force attacks. Additionally, compromising the confidentiality of user data may result in reputational damage for affected sites. Vulnerable systems are at risk of privacy violations and may face regulatory repercussions. Overall, addressing this issue is crucial to maintaining user trust and data integrity.
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