CVE-2025-15283 is a stored Cross-Site Scripting (XSS) vulnerability classified under CWE-79, found in the 'Name Directory' WordPress plugin developed by jeroenpeters1986. This vulnerability affects all versions up to and including 1.30.3. The root cause is insufficient sanitization and escaping of user-supplied input in the 'name_directory_name' and 'name_directory_description' parameters. Because these inputs are stored and later rendered in web pages without proper neutralization, attackers can inject arbitrary JavaScript code that executes in the context of any user visiting the affected pages. The vulnerability is exploitable remotely by unauthenticated attackers without any user interaction, increasing its risk profile. The CVSS v3.1 base score is 7.2, reflecting its network attack vector, low attack complexity, no privileges required, no user interaction, and a scope change due to affecting confidentiality and integrity. The impact includes potential theft of user credentials, session tokens, or performing actions on behalf of users. No official patches or fixes are currently linked, and no known exploits have been reported in the wild as of the publication date. The vulnerability was reserved in late 2025 and published in early 2026, indicating recent discovery. Given WordPress’s widespread use, this vulnerability poses a significant threat to websites using this plugin without mitigation.

The impact of CVE-2025-15283 is substantial for organizations running WordPress sites with the vulnerable Name Directory plugin. Successful exploitation allows attackers to execute arbitrary scripts in users’ browsers, leading to theft of authentication cookies, user impersonation, defacement, or redirection to malicious sites. This compromises confidentiality and integrity of user data and site content. Since exploitation requires no authentication or user interaction, attackers can automate attacks at scale, potentially affecting large user bases. The vulnerability does not directly affect availability but can indirectly cause service disruption through defacement or loss of user trust. Organizations relying on this plugin for directory services or user listings face reputational damage and increased risk of further compromise if attackers leverage the XSS to deploy additional payloads such as malware or phishing. The scope is broad due to WordPress’s global popularity, especially among small to medium businesses, bloggers, and enterprises using the plugin. Without timely mitigation, the vulnerability could be exploited in targeted or mass campaigns.

1. Immediate action should be to update the Name Directory plugin to a patched version once available from the vendor. Monitor official channels for release announcements. 2. Until a patch is released, implement Web Application Firewall (WAF) rules to detect and block malicious payloads targeting the 'name_directory_name' and 'name_directory_description' parameters. 3. Employ Content Security Policy (CSP) headers to restrict execution of unauthorized scripts in browsers. 4. Sanitize and validate all user inputs at the application level, ensuring that any data stored or displayed is properly escaped to neutralize scripts. 5. Conduct regular security audits and penetration testing focusing on input validation and output encoding in all plugins. 6. Educate site administrators on the risks of installing unvetted plugins and maintaining up-to-date software. 7. Consider disabling or removing the Name Directory plugin if it is not essential, to reduce attack surface. 8. Monitor logs for suspicious activity related to injection attempts or unusual user behavior. 9. Backup website data regularly to enable recovery in case of compromise. 10. Use security plugins that can detect and alert on XSS attempts.