CVE-2025-8150 is a stored Cross-Site Scripting (XSS) vulnerability identified in the Events Addon for Elementor plugin for WordPress, specifically affecting all versions up to and including 2.2.9. This plugin extends Elementor by adding event-related widgets such as Typewriter and Countdown. The vulnerability arises due to improper neutralization of input during web page generation (CWE-79), where user-supplied attributes are insufficiently sanitized and output escaped. As a result, authenticated users with contributor-level permissions or higher can inject arbitrary JavaScript code into pages via these widgets. When other users visit the compromised pages, the malicious scripts execute in their browsers. The vulnerability has a CVSS 3.1 base score of 6.4, indicating a medium severity level. The attack vector is network-based (remote), requires low attack complexity, and privileges of at least contributor level, but no user interaction is needed for exploitation. The scope is changed, meaning the vulnerability can affect components beyond the initially vulnerable plugin, potentially impacting the broader WordPress site. The impact includes limited confidentiality and integrity loss, as the injected scripts could steal session tokens, perform actions on behalf of users, or manipulate page content. Availability is not impacted. No known exploits in the wild have been reported yet. No official patches or updates have been linked at the time of publication, so mitigation relies on access control and input validation strategies. This vulnerability is significant because WordPress is widely used across Europe, and Elementor is a popular page builder plugin, making the Events Addon a common extension in event-driven websites. Attackers exploiting this flaw could compromise site visitors and administrators, leading to data theft, defacement, or further compromise of the hosting environment.

For European organizations, this vulnerability poses a moderate risk, especially for those relying on WordPress sites with the Events Addon for Elementor plugin. The ability for contributors to inject persistent malicious scripts can lead to session hijacking, unauthorized actions, and data leakage affecting both site users and administrators. Organizations in sectors such as event management, education, cultural institutions, and small to medium enterprises that use event-driven websites are particularly at risk. The compromise of user credentials or administrative accounts could lead to broader network infiltration or reputational damage. Given the widespread adoption of WordPress and Elementor in Europe, the vulnerability could be exploited to target users across multiple countries. The lack of user interaction required for exploitation increases the risk of automated attacks. However, the requirement for contributor-level access somewhat limits the attack surface to insiders or compromised accounts. The absence of known exploits in the wild suggests that immediate widespread attacks are not yet observed, but the vulnerability should be addressed promptly to prevent future exploitation.

1. Restrict contributor-level permissions strictly: Limit the number of users with contributor or higher privileges and enforce strong authentication mechanisms such as multi-factor authentication (MFA) to reduce the risk of account compromise. 2. Implement Web Application Firewall (WAF) rules that detect and block suspicious script injections targeting the Typewriter and Countdown widgets of the Events Addon for Elementor. 3. Conduct regular audits of user-generated content, especially event pages using these widgets, to identify and remove any injected scripts. 4. Until an official patch is released, consider disabling or removing the Events Addon for Elementor plugin if it is not critical to operations. 5. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts on the website. 6. Educate content contributors about safe input practices and the risks of injecting untrusted code. 7. Monitor logs for unusual activity related to contributor accounts and page modifications. 8. Stay updated with vendor announcements for patches or updates addressing this vulnerability and apply them promptly once available.