CVE-2025-30575 is a Stored Cross-site Scripting (XSS) vulnerability identified in the Arefly Login Redirect plugin, affecting all versions up to and including 1.0.5. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, specifically within the login redirect functionality. This flaw allows an attacker to inject malicious JavaScript code that is persistently stored on the server and executed in the browsers of users who access the affected pages. Stored XSS is particularly dangerous because the malicious payload is served to every user visiting the compromised page, increasing the attack surface. The vulnerability does not require authentication or user interaction beyond visiting the infected page, making it easier to exploit. Although no public exploits have been reported yet, the vulnerability could be leveraged to perform session hijacking, steal cookies or credentials, deface websites, or conduct phishing attacks by manipulating the content displayed to users. The absence of a CVSS score indicates that the vulnerability is newly disclosed, but its characteristics align with high-severity XSS flaws. The affected product, Arefly Login Redirect, is used in web environments where login redirection is implemented, potentially impacting numerous organizations relying on this plugin for authentication workflows.

The impact of CVE-2025-30575 on organizations worldwide can be significant. Successful exploitation enables attackers to execute arbitrary scripts in the context of the victim’s browser, compromising user sessions and potentially leading to account takeover. This can result in unauthorized access to sensitive information, manipulation of user data, and disruption of normal operations. For organizations, this could mean loss of customer trust, regulatory penalties due to data breaches, and financial losses from fraud or remediation costs. The vulnerability also facilitates phishing and social engineering attacks by altering the appearance or behavior of legitimate login pages. Since the flaw affects a login redirect component, it may be integrated into critical authentication processes, amplifying the risk. The lack of authentication requirements and user interaction lowers the barrier for attackers, increasing the likelihood of widespread exploitation if left unmitigated. Organizations with web applications using the affected plugin or similar login redirect mechanisms are particularly vulnerable, especially those with large user bases or sensitive data.

To mitigate CVE-2025-30575, organizations should immediately update the Arefly Login Redirect plugin to a version that addresses this vulnerability once available. In the absence of an official patch, applying input validation and output encoding on all user-supplied data in the login redirect functionality is critical to prevent script injection. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of potential XSS payloads. Conduct thorough code reviews and penetration testing focused on input handling in authentication-related components. Additionally, monitor web application logs for suspicious input patterns or unusual redirect behaviors that may indicate exploitation attempts. Educate developers on secure coding practices, particularly regarding input sanitization and context-aware encoding. If feasible, implement multi-factor authentication to reduce the impact of session hijacking. Finally, maintain an incident response plan to quickly address any detected exploitation.