CVE-2025-31642 is a reflected Cross-site Scripting (XSS) vulnerability classified under CWE-79, found in the Dasinfomedia WPCHURCH WordPress plugin, affecting versions up to 2.7.0. The vulnerability stems from improper neutralization of input during web page generation, allowing an attacker to inject malicious JavaScript code that is reflected back to the user’s browser. This can occur when user-supplied input is included in web pages without adequate sanitization or encoding. The attack vector is remote network access (AV:N), with low attack complexity (AC:L), no privileges required (PR:N), but requires user interaction (UI:R), such as clicking a malicious link. The scope is changed (S:C), meaning the vulnerability can affect resources beyond the vulnerable component. The impact includes low confidentiality loss (C:L), low integrity loss (I:L), and low availability loss (A:L), but combined these impacts justify a high severity rating with a CVSS 3.1 score of 7.1. Although no known exploits are currently reported in the wild, the vulnerability presents a significant risk because attackers can steal session cookies, perform actions on behalf of users, or redirect victims to malicious sites. The plugin is typically used by religious organizations to manage church websites, which may contain sensitive community data. The lack of an available patch at the time of publication increases the urgency for mitigation through alternative controls. The vulnerability was reserved in March 2025 and published in January 2026, indicating a recent discovery and disclosure.

For European organizations, particularly religious institutions and community groups using WPCHURCH, this vulnerability poses a risk of session hijacking, unauthorized actions, and potential defacement or redirection attacks. Confidentiality of user data such as personal information and session tokens can be compromised, leading to identity theft or unauthorized access. Integrity of website content can be undermined, damaging trust and reputation. Availability may be affected if attackers leverage the vulnerability to disrupt services or inject malicious scripts that degrade user experience. Given the widespread use of WordPress and its plugins in Europe, the vulnerability could be exploited to target multiple organizations, especially those with less mature cybersecurity defenses. The requirement for user interaction means phishing or social engineering campaigns could be used to facilitate exploitation. The absence of known exploits in the wild currently limits immediate impact, but the high CVSS score and ease of exploitation suggest that attackers may develop exploits soon, increasing risk.

1. Monitor Dasinfomedia’s official channels for patches addressing CVE-2025-31642 and apply them promptly once released. 2. Implement Web Application Firewalls (WAFs) with robust XSS filtering rules to detect and block malicious input patterns targeting WPCHURCH. 3. Employ strict input validation and output encoding in any custom code or extensions interacting with WPCHURCH to prevent injection of malicious scripts. 4. Educate users and administrators about the risks of clicking on suspicious links, especially those that could trigger reflected XSS attacks. 5. Conduct regular security audits and penetration tests focusing on web application vulnerabilities, including XSS, to identify and remediate weaknesses proactively. 6. Limit user privileges and session lifetimes to reduce the impact of potential session hijacking. 7. Use Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. 8. Monitor logs for unusual activity or repeated attempts to exploit reflected XSS vectors. These measures, combined, will reduce the likelihood and impact of exploitation until an official patch is available.