The vulnerability identified as CVE-2025-64194 affects ThimPress Eduma, a WordPress theme widely used for educational websites. It is a stored Cross-site Scripting (XSS) flaw caused by improper neutralization of user-supplied input during the generation of web pages. Specifically, the application fails to adequately sanitize or encode input before rendering it in the HTML output, allowing attackers to inject malicious JavaScript code that is stored on the server and executed in the browsers of other users who visit the affected pages. The flaw exists in versions up to and including 5.7.6. The CVSS 3.1 base score is 6.5, indicating medium severity, with an attack vector of network (remote exploitation), low attack complexity, requiring privileges (PR:L) and user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability can affect resources beyond the vulnerable component. The impacts include limited confidentiality loss (C:L), integrity loss (I:L), and availability loss (A:L). An attacker with authenticated access can craft payloads that, when viewed by other users, execute scripts capable of stealing session cookies, performing actions on behalf of users, or disrupting service. Although no known exploits are currently in the wild, the vulnerability poses a significant risk to organizations relying on Eduma for their e-learning platforms. The vulnerability underscores the importance of secure coding practices, especially input validation and output encoding in web applications. Since Eduma is a WordPress theme, the affected systems are primarily websites running WordPress CMS with this theme installed. The vulnerability is particularly concerning for educational institutions and training providers that use Eduma to deliver content, as exploitation could compromise user data and platform integrity.

For European organizations, the impact of CVE-2025-64194 can be substantial, especially for educational institutions, e-learning providers, and training platforms that use the Eduma theme. Successful exploitation can lead to unauthorized access to user sessions, enabling attackers to impersonate users, steal sensitive information such as personal data or credentials, and manipulate content. This can erode trust in the affected platforms and potentially lead to data protection violations under GDPR, resulting in legal and financial penalties. Additionally, the integrity of educational content can be compromised, affecting the quality and reliability of training programs. Availability impacts, while limited, could disrupt access to learning resources, affecting operational continuity. The requirement for user interaction and some privilege level reduces the likelihood of widespread automated exploitation but does not eliminate targeted attacks. Given the increasing reliance on digital education in Europe, this vulnerability poses a risk to both public and private sector organizations involved in education and training services.

To mitigate CVE-2025-64194, organizations should first monitor for and apply any official patches or updates released by ThimPress as soon as they become available. In the absence of patches, implement strict input validation on all user-supplied data, ensuring that potentially dangerous characters are sanitized or encoded before rendering. Employ output encoding techniques such as HTML entity encoding to prevent script execution. Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of any injected code. Regularly audit and review user-generated content for suspicious inputs. Limit user privileges to the minimum necessary to reduce the risk of malicious input from authenticated users. Educate users about the risks of interacting with untrusted content and phishing attempts that may leverage XSS vulnerabilities. Additionally, consider using Web Application Firewalls (WAFs) with rules designed to detect and block XSS payloads targeting Eduma. Finally, maintain comprehensive logging and monitoring to detect exploitation attempts promptly.