CVE-2025-24640 is a reflected Cross-site Scripting (XSS) vulnerability identified in the Empty Tags Remover plugin developed by Dan-Lucian Stefancu. This vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, which allows attackers to inject malicious scripts that execute in the context of a victim's browser. The affected product versions include all releases up to and including version 1.0. Reflected XSS vulnerabilities typically occur when input is immediately included in the output without proper sanitization or encoding, enabling attackers to craft URLs or form submissions that execute arbitrary JavaScript when visited by users. This can lead to session hijacking, theft of sensitive information such as cookies or credentials, defacement, or redirection to malicious websites. The vulnerability does not require authentication, increasing its risk profile, and no user interaction beyond visiting a malicious link is necessary. Although no exploits have been reported in the wild at the time of publication, the presence of this vulnerability in a web-facing plugin used in content management or web development environments makes it a significant concern. The lack of an official CVSS score necessitates an independent severity assessment based on impact and exploitability factors.

The primary impact of CVE-2025-24640 is on the confidentiality and integrity of users interacting with websites using the vulnerable Empty Tags Remover plugin. Successful exploitation can lead to session hijacking, allowing attackers to impersonate legitimate users and access sensitive data or perform unauthorized actions. It can also facilitate phishing attacks by redirecting users to malicious sites or displaying fraudulent content. The availability impact is generally low but could be indirectly affected if attackers deface websites or disrupt normal user interactions. Organizations worldwide that rely on this plugin for web content processing are at risk, especially those with high volumes of user traffic or sensitive user data. The ease of exploitation without authentication and the potential for widespread impact on end users make this a high-risk vulnerability. Additionally, the lack of a patch at the time of reporting increases exposure until mitigations are applied.

1. Monitor for official patches or updates from the vendor and apply them promptly once available. 2. Implement strict input validation and output encoding on all user-supplied data to prevent script injection, especially in web page generation contexts. 3. Use Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of potential XSS attacks. 4. Employ web application firewalls (WAFs) with rules designed to detect and block reflected XSS attack patterns targeting the plugin. 5. Educate users about the risks of clicking on suspicious links and encourage the use of security-aware browsing practices. 6. Conduct regular security assessments and code reviews of web applications using this plugin to identify and remediate similar vulnerabilities. 7. Consider disabling or replacing the Empty Tags Remover plugin with alternative solutions that follow secure coding practices until a patch is available.