CVE-2025-24564 is a reflected Cross-site Scripting (XSS) vulnerability found in the Contact Form With Shortcode plugin developed by aviplugins.com, affecting all versions up to and including 4.2.5. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, specifically within the contact form shortcode functionality. This flaw allows an attacker to craft malicious URLs containing executable JavaScript code that, when visited by a victim, is reflected back and executed in the victim's browser context. This reflected XSS does not require prior authentication, making it accessible to unauthenticated attackers, but it does require user interaction, such as clicking a malicious link or visiting a compromised page. The absence of a CVSS score indicates that the vulnerability has been recently published and not yet fully assessed. No known public exploits have been reported so far. However, the impact of such vulnerabilities typically includes theft of session cookies, redirection to malicious sites, defacement, or delivery of malware payloads. The plugin is widely used in WordPress environments, which are prevalent globally, increasing the potential attack surface. The vulnerability highlights the need for proper input validation and output encoding in web applications, especially those handling user-generated content. Since no patch links are currently provided, users should monitor vendor announcements and consider temporary mitigations such as disabling the vulnerable plugin or restricting access to the contact form. Additionally, deploying Web Application Firewalls (WAFs) can help detect and block exploitation attempts. Organizations should also educate users about the risks of clicking suspicious links to reduce the likelihood of successful attacks.

The primary impact of CVE-2025-24564 is the compromise of confidentiality and integrity for websites using the vulnerable Contact Form With Shortcode plugin. Successful exploitation allows attackers to execute arbitrary JavaScript in the context of the victim's browser, potentially leading to session hijacking, theft of sensitive information such as cookies or credentials, and unauthorized actions performed on behalf of the user. This can result in account compromise, data leakage, and reputational damage for affected organizations. Additionally, attackers may use the vulnerability to deliver malware or redirect users to phishing sites, increasing the risk of further compromise. Since the vulnerability is reflected XSS, it requires user interaction, which somewhat limits the scope but does not eliminate the threat, especially in targeted phishing campaigns. The widespread use of WordPress and associated plugins means that many websites globally could be affected, particularly those that have not updated or patched the plugin. The lack of a patch at the time of disclosure increases the window of exposure. The vulnerability does not directly affect system availability but can indirectly cause service disruptions if exploited at scale or if remediation requires taking the site offline. Overall, the threat poses a significant risk to web application security and user trust.

1. Monitor official aviplugins.com channels and security advisories for the release of a patch addressing CVE-2025-24564 and apply it promptly. 2. Until a patch is available, consider disabling or removing the Contact Form With Shortcode plugin to eliminate the attack surface. 3. Implement strict input validation and output encoding on all user-supplied data, especially within web forms and shortcode processing, to prevent injection of malicious scripts. 4. Deploy a Web Application Firewall (WAF) configured to detect and block reflected XSS payloads targeting the contact form endpoints. 5. Educate users and administrators about the risks of clicking on suspicious links and encourage cautious behavior to reduce successful exploitation chances. 6. Conduct regular security assessments and penetration testing focusing on web application vulnerabilities, including XSS. 7. Use Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in the browser, mitigating the impact of XSS attacks. 8. Review and harden other plugins and themes to ensure they follow secure coding practices, reducing the overall attack surface. 9. Maintain regular backups and incident response plans to quickly recover from potential compromises.