CVE-2025-62991 identifies a stored Cross-site Scripting (XSS) vulnerability in the ThinkUpThemes Minamaze WordPress theme, affecting versions up to 1.10.1. The root cause is improper neutralization of input during web page generation, classified under CWE-79. This vulnerability allows an attacker with low privileges (PR:L) to inject malicious scripts that are stored persistently on the website and executed in the context of users who visit the affected pages. The attack vector is network-based (AV:N), requiring user interaction (UI:R), and the vulnerability scope is changed (S:C), meaning it can affect resources beyond the initially vulnerable component. The CVSS 3.1 base score is 6.5, indicating medium severity, with partial impacts on confidentiality, integrity, and availability. Exploitation could lead to session hijacking, theft of sensitive data, defacement, or malware delivery. No patches are currently linked, and no known exploits are reported in the wild. The vulnerability is particularly relevant for organizations using the Minamaze theme for public-facing WordPress sites, where attackers can leverage stored XSS to compromise site visitors or administrators. The vulnerability’s persistence makes it more dangerous than reflected XSS, as malicious payloads remain active until removed or patched.

For European organizations, this vulnerability poses a significant risk to websites using the Minamaze theme, especially those handling sensitive user data or providing critical services. Exploitation could lead to unauthorized access to user sessions, data theft, and reputational damage. The ability to execute scripts in users’ browsers can facilitate phishing, malware distribution, or unauthorized actions on behalf of users. This is particularly concerning for sectors such as e-commerce, government portals, and financial services where trust and data integrity are paramount. Additionally, the vulnerability could be leveraged to bypass security controls or propagate further attacks within an organization’s network. Given the medium severity and the requirement for user interaction, the impact is mitigated somewhat but remains a notable threat vector for web-facing assets.

1. Monitor ThinkUpThemes official channels for patches addressing CVE-2025-62991 and apply updates promptly once available. 2. Implement strict input validation and sanitization on all user inputs, especially those rendered on web pages, to prevent injection of malicious scripts. 3. Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of potential XSS payloads. 4. Conduct regular security audits and penetration testing focused on web application vulnerabilities, including stored XSS. 5. Educate site administrators and users about the risks of clicking suspicious links or submitting untrusted content. 6. Use Web Application Firewalls (WAFs) with rules tuned to detect and block XSS payloads targeting WordPress themes. 7. Limit privileges of users who can submit content to reduce the risk of malicious input injection. 8. Regularly review and sanitize existing content to remove any malicious scripts that may have been injected prior to patching.