CVE-2025-8150 identifies a stored Cross-Site Scripting (XSS) vulnerability in the Events Addon for Elementor plugin for WordPress, specifically affecting the Typewriter and Countdown widgets. The root cause is insufficient sanitization and escaping of user-supplied input attributes, which allows authenticated users with contributor-level permissions or higher to inject arbitrary JavaScript code into pages. When other users visit these pages, the malicious scripts execute in their browsers, potentially compromising session tokens, redirecting users, or performing unauthorized actions on behalf of the victim. The vulnerability affects all versions up to and including 2.2.9. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, requiring privileges (contributor or above), no user interaction, and partial impact on confidentiality and integrity but no impact on availability. No public exploits have been reported yet, but the vulnerability poses a significant risk due to the widespread use of WordPress and Elementor plugins. The vulnerability is classified under CWE-79, which covers improper neutralization of input during web page generation. The lack of patches at the time of reporting necessitates immediate mitigation efforts by administrators.

The primary impact of this vulnerability is the potential for attackers with contributor-level access to inject persistent malicious scripts into web pages, which execute in the browsers of site visitors and administrators. This can lead to session hijacking, theft of sensitive information, defacement of websites, unauthorized actions performed with the victim's privileges, and distribution of malware. For organizations, this can result in reputational damage, loss of customer trust, data breaches, and compliance violations. Since the vulnerability requires authenticated access, the risk is somewhat mitigated but remains significant in environments where contributor accounts are common or easily compromised. The scope includes any WordPress site using the affected Events Addon for Elementor plugin, which is popular among event management and marketing websites. The medium CVSS score reflects moderate severity but with potential for serious consequences if exploited.

1. Immediately restrict contributor-level and higher user permissions to trusted individuals only, minimizing the risk of malicious input injection. 2. Monitor and audit user-generated content in the Typewriter and Countdown widgets for suspicious scripts or anomalies. 3. Implement additional server-side input validation and output encoding for all user-supplied attributes in the affected widgets to prevent script injection. 4. Apply security plugins or Web Application Firewalls (WAFs) that can detect and block XSS payloads targeting these widgets. 5. Stay alert for official patches or updates from nicheaddons and apply them promptly once released. 6. Educate content contributors about safe input practices and the risks of injecting scripts. 7. Consider temporarily disabling the affected widgets if immediate patching is not possible. 8. Regularly back up website data to enable recovery in case of compromise.