CVE-2024-53823 is a DOM-based Cross-site Scripting (XSS) vulnerability affecting The Plus Addons for Elementor Page Builder Lite plugin by POSIMYTH, specifically versions up to and including 5.6.14. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, which allows malicious actors to inject arbitrary JavaScript code into the Document Object Model (DOM). This injected script executes in the context of the victim's browser when they visit a crafted URL or interact with a compromised page, potentially leading to unauthorized actions such as cookie theft, session hijacking, or redirection to malicious sites. Unlike reflected or stored XSS, DOM-based XSS occurs entirely on the client side, making detection and mitigation more challenging. The vulnerability does not require authentication, increasing its attack surface, but does require user interaction to trigger the malicious payload. Currently, no public exploits have been reported, and no official patches are linked yet. The plugin is widely used in WordPress environments to enhance Elementor page builder functionality, making the vulnerability relevant to many websites globally. The lack of a CVSS score necessitates an independent severity assessment based on the vulnerability's characteristics and potential impact.

The impact of CVE-2024-53823 is significant for organizations using The Plus Addons for Elementor Page Builder Lite plugin. Successful exploitation can lead to the execution of arbitrary JavaScript in users' browsers, compromising confidentiality by stealing session tokens, cookies, or sensitive information displayed on the page. Integrity can be affected through unauthorized actions performed on behalf of the user, such as changing account settings or injecting misleading content. Availability impact is generally low but could be indirectly affected if attackers deface websites or cause client-side disruptions. The vulnerability's ease of exploitation without authentication and the widespread use of the affected plugin increase the risk of large-scale attacks. Organizations may face reputational damage, regulatory penalties, and financial losses if customer data is compromised or services disrupted. Additionally, attackers could leverage this vulnerability as a foothold for further attacks within the victim's network or to distribute malware.

1. Monitor official POSIMYTH channels and WordPress plugin repositories for patches addressing CVE-2024-53823 and apply updates promptly once available. 2. Until a patch is released, implement strict Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of injected code. 3. Employ input validation and sanitization on all user-supplied data, especially data that influences DOM manipulation in the plugin's context. 4. Use security plugins or web application firewalls (WAFs) capable of detecting and blocking XSS payloads targeting WordPress environments. 5. Educate users and administrators about the risks of clicking on suspicious links and encourage cautious browsing behavior. 6. Conduct regular security audits and penetration testing focusing on client-side vulnerabilities in web applications using Elementor and its addons. 7. Consider temporarily disabling or replacing the affected plugin with alternative solutions if immediate patching is not feasible.