CVE-2025-11003 is a vulnerability classified under CWE-862 (Missing Authorization) affecting the UiPress lite WordPress plugin, which is used for creating custom dashboards, admin themes, and pages. The root cause is the lack of a proper capability check in the 'uip_save_ui_template' function, which is responsible for saving UI templates. This omission allows any authenticated user with Subscriber-level privileges or higher to save templates containing arbitrary custom JavaScript. Since Subscribers typically have limited permissions, this vulnerability effectively escalates their ability to inject potentially malicious scripts into the WordPress admin interface or front-end, depending on how templates are rendered. The vulnerability is remotely exploitable over the network without user interaction, requiring only low-level authenticated access. The impact includes potential confidentiality and integrity breaches through client-side script execution, such as stealing cookies, session tokens, or performing actions on behalf of higher-privileged users. The vulnerability affects all versions of the plugin up to 3.5.08, with no patches currently linked. No known exploits have been observed in the wild, but the vulnerability's characteristics make it a candidate for exploitation in targeted attacks. The CVSS v3.1 score of 6.4 reflects a medium severity, with network attack vector, low attack complexity, low privileges required, no user interaction, and a scope change due to the ability to affect other components via script injection.

For European organizations using WordPress sites with the UiPress lite plugin, this vulnerability poses a significant risk of unauthorized data manipulation and client-side attacks. Attackers with minimal privileges can inject malicious JavaScript, potentially leading to session hijacking, data theft, or further compromise of administrative accounts. This can undermine the confidentiality and integrity of sensitive information managed through the WordPress platform. Organizations in sectors such as finance, healthcare, government, and e-commerce, which often rely on WordPress for content management and customer interaction, could face reputational damage, regulatory penalties under GDPR for data breaches, and operational disruptions. The vulnerability's ease of exploitation and the widespread use of WordPress across Europe amplify its potential impact. Additionally, the lack of user interaction requirement facilitates automated exploitation attempts. While availability impact is not directly affected, the indirect consequences of a successful attack could include service disruptions or defacement.

European organizations should immediately audit their WordPress installations to identify the presence of the UiPress lite plugin and verify the version in use. Since no official patches are currently linked, organizations should consider the following specific mitigations: 1) Restrict plugin usage to trusted administrators only by adjusting WordPress user roles and capabilities to limit Subscriber-level users from accessing or interacting with the plugin's template saving functionality. 2) Implement Web Application Firewall (WAF) rules to detect and block suspicious POST requests targeting the 'uip_save_ui_template' function or containing suspicious JavaScript payloads. 3) Monitor logs for unusual activity related to template saving or JavaScript injection attempts. 4) Temporarily disable or uninstall the UiPress lite plugin if feasible until a patch is released. 5) Educate users with Subscriber-level access about phishing and social engineering risks to reduce the chance of credential compromise. 6) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts on WordPress sites. 7) Keep WordPress core and all plugins updated to the latest versions and subscribe to security advisories for timely patching once available.