CVE-2025-22811 is a stored cross-site scripting (XSS) vulnerability identified in the MT Addons for Elementor plugin developed by Cristian Stan, affecting all versions up to and including 1.0.6. 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 sensitive information, or unauthorized actions performed on behalf of the victim. Unlike reflected XSS, stored XSS is more dangerous because the payload remains on the server and affects any user accessing the infected content. The vulnerability does not require authentication or user interaction beyond visiting the affected page, increasing its exploitability. Although no public exploits have been reported yet, the widespread use of Elementor and its addons in WordPress sites makes this a significant threat. The lack of a CVSS score indicates that the vulnerability is newly published and not yet fully assessed, but the technical details confirm the high risk associated with stored XSS. The plugin’s market penetration in popular WordPress deployments worldwide means that numerous websites could be vulnerable if not updated or mitigated promptly.

The stored XSS vulnerability in MT Addons for Elementor can have severe consequences for organizations globally. Attackers can inject persistent malicious scripts that execute in the browsers of site visitors, leading to theft of authentication cookies, user credentials, or other sensitive data. This can result in account takeover, unauthorized access to backend systems, or further compromise of the website infrastructure. Additionally, attackers may use the vulnerability to deface websites, distribute malware, or conduct phishing attacks by manipulating site content. The impact extends to loss of user trust, reputational damage, and potential regulatory penalties if user data is compromised. Since the vulnerability affects a widely used WordPress plugin, organizations relying on this plugin for website functionality are at risk, especially those with high traffic or handling sensitive user information. The ease of exploitation without authentication or complex prerequisites increases the likelihood of attacks, potentially affecting availability if attackers disrupt site operations or cause downtime through malicious payloads.

To mitigate CVE-2025-22811, organizations should immediately update MT Addons for Elementor to a version that addresses the vulnerability once released by the vendor. Until a patch is available, administrators should implement strict input validation and output encoding on all user-supplied data within the plugin’s scope to prevent script injection. Employing a Web Application Firewall (WAF) with rules targeting XSS payloads can help block exploitation attempts. Regularly audit and sanitize stored content in the plugin’s data stores to remove any injected scripts. Restrict user permissions to limit who can submit content that appears on public pages, reducing the attack surface. Monitoring website logs for unusual input patterns or script injections can aid in early detection. Additionally, educating site administrators and users about the risks of XSS and safe content management practices is important. Finally, consider isolating or disabling the vulnerable plugin if immediate patching is not feasible, to prevent exploitation.