CVE-2024-49267 is a stored Cross-site Scripting (XSS) vulnerability identified in the Unlimited Addon For Elementor plugin by nayon46, affecting all versions up to 2.0.0. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, which allows attackers to inject malicious JavaScript code that is stored persistently on the affected website. When other users visit the compromised pages, the malicious script executes in their browsers within the context of the vulnerable site, potentially leading to session hijacking, theft of cookies or credentials, unauthorized actions on behalf of users, or delivery of further malware. Stored XSS is particularly dangerous because the payload remains on the server and affects every visitor to the infected page. The plugin is a third-party addon for Elementor, a widely used WordPress page builder, which increases the attack surface due to the popularity of the platform. No authentication or special privileges are required to exploit this vulnerability, and no user interaction beyond visiting the affected page is necessary. Although no public exploits or active attacks have been reported yet, the vulnerability is publicly disclosed and thus may attract attackers. No CVSS score has been assigned yet, but the nature of the vulnerability and its potential impact warrant a high severity rating. Currently, no official patches or updates have been linked, so users must monitor vendor communications closely. The vulnerability affects websites globally but is more critical in regions with high WordPress adoption and significant online business presence.

The stored XSS vulnerability in Unlimited Addon For Elementor can have severe consequences for organizations worldwide. Attackers can leverage this flaw to execute arbitrary JavaScript in the browsers of site visitors, leading to theft of sensitive information such as session cookies, login credentials, or personal data. This can result in account takeover, unauthorized transactions, or further compromise of internal systems if administrative users are targeted. Additionally, attackers may deface websites, damaging brand reputation and user trust. The vulnerability can also be used to deliver malware or redirect users to malicious sites, increasing the risk of broader infection campaigns. For organizations handling sensitive or regulated data, this could lead to compliance violations and financial penalties. The ease of exploitation without authentication and the persistent nature of stored XSS increase the risk and potential scale of impact. Websites with high traffic or those serving critical business functions are especially vulnerable to reputational and operational damage. The absence of a patch at the time of disclosure further elevates the risk until mitigations are applied.

Organizations using the Unlimited Addon For Elementor plugin should take immediate steps to mitigate the risk posed by CVE-2024-49267. First, monitor the vendor's official channels for security updates or patches and apply them promptly once available. Until a patch is released, consider temporarily disabling or removing the plugin to eliminate the attack vector. Implement Web Application Firewall (WAF) rules to detect and block common XSS payloads targeting the affected plugin's input fields. Conduct thorough input validation and output encoding on all user-supplied data within the plugin's scope, if feasible, to neutralize malicious scripts. Regularly audit website content for suspicious or unauthorized script injections. Educate site administrators and developers about the risks of stored XSS and encourage the use of security best practices in plugin development and deployment. Additionally, ensure that all WordPress core, themes, and other plugins are up to date to reduce overall attack surface. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts on the website. Finally, maintain regular backups and incident response plans to quickly recover from any successful exploitation.