CVE-2025-23990 identifies a Cross-Site Request Forgery (CSRF) vulnerability in the jablonczay Scroll Styler plugin, affecting all versions up to 1.1. CSRF vulnerabilities occur when a web application does not properly verify that requests made to it originate from legitimate users, allowing attackers to craft malicious web pages that cause authenticated users to unknowingly perform actions such as changing settings or triggering functions within the vulnerable plugin. Scroll Styler is a plugin designed to customize scrollbars on websites, commonly used in WordPress environments. The vulnerability arises because the plugin lacks adequate CSRF protections, such as anti-CSRF tokens or origin checks, in its request handling. An attacker can exploit this by enticing an authenticated user to visit a malicious website or click a crafted link, which then sends unauthorized requests to the vulnerable site. Although no exploits have been reported in the wild, the vulnerability is publicly disclosed and unpatched, increasing the risk of exploitation. The absence of a CVSS score means severity must be inferred from the nature of the vulnerability, which impacts the integrity and availability of the affected application. Since the plugin is used primarily in web environments, the scope includes any website using Scroll Styler up to version 1.1. The vulnerability does not require privilege escalation or bypassing authentication, but the victim must be logged in for the attack to succeed. This vulnerability highlights the importance of implementing standard web security controls in third-party plugins.

The primary impact of CVE-2025-23990 is the potential for unauthorized actions to be performed on behalf of authenticated users, compromising the integrity of the affected web applications. Attackers can manipulate plugin settings or trigger unintended behaviors, potentially leading to website defacement, configuration changes, or disruption of user experience. This can degrade availability if critical functions are altered or disabled. Confidentiality impact is generally low, as CSRF does not directly expose data but can be a vector for further attacks if combined with other vulnerabilities. Organizations relying on Scroll Styler for UI customization may face reputational damage, loss of user trust, and operational disruptions. The lack of a patch and known exploits increases the window of exposure. Since the plugin is often used in WordPress sites, which are widely deployed globally, the threat can affect a broad range of organizations, including small businesses, e-commerce platforms, and content providers. The ease of exploitation—requiring only that a user be authenticated and visit a malicious page—makes this vulnerability particularly dangerous in environments with many logged-in users. Overall, the vulnerability poses a high risk to the integrity and availability of affected systems.

To mitigate CVE-2025-23990, organizations should immediately implement or verify the presence of robust CSRF protections in their web applications, especially those using the Scroll Styler plugin. This includes ensuring that all state-changing requests require a valid, unique anti-CSRF token that is verified server-side. Web application firewalls (WAFs) can be configured to detect and block suspicious cross-site requests. Administrators should restrict plugin usage to trusted users and limit administrative access to reduce the attack surface. Monitoring web server logs for unusual POST requests or unexpected parameter changes can help detect exploitation attempts. Until an official patch is released, consider disabling or removing the Scroll Styler plugin if feasible. Additionally, educating users about the risks of clicking untrusted links while authenticated can reduce exposure. Developers maintaining the plugin should prioritize releasing a patch that includes proper CSRF protections, such as nonce verification and origin header checks. Finally, applying a defense-in-depth approach by combining CSRF tokens with same-site cookies and Content Security Policy (CSP) headers can further reduce risk.