CVE-2025-54747 is a Cross-site Scripting (XSS) vulnerability classified under CWE-79, affecting the wpbakery Templatera plugin up to version 2.3.0. This vulnerability arises from improper neutralization of input during web page generation, specifically enabling DOM-based XSS attacks. In such attacks, malicious scripts are injected into the Document Object Model (DOM) of a web page, which are then executed by the victim's browser. The vulnerability allows an attacker with at least low privileges (PR:L) and requiring user interaction (UI:R) to execute arbitrary scripts in the context of the affected web application. The CVSS v3.1 score of 6.5 (medium severity) reflects that the attack vector is network-based (AV:N), with low attack complexity (AC:L), but requires some privileges and user interaction. The scope is changed (S:C), meaning the vulnerability can affect resources beyond the initially vulnerable component. The impact includes limited confidentiality, integrity, and availability losses (C:L/I:L/A:L). Since the vulnerability is DOM-based, it exploits client-side script execution, potentially leading to session hijacking, defacement, or redirection to malicious sites. No known exploits are reported in the wild yet, and no patches have been linked, indicating that mitigation may rely on vendor updates or configuration changes. The vulnerability affects websites using the wpbakery Templatera plugin, a popular WordPress page builder extension, which is widely used for templating and content management in WordPress environments.

For European organizations, this vulnerability poses a significant risk especially to those relying on WordPress sites with the wpbakery Templatera plugin for their web presence. Successful exploitation could lead to unauthorized script execution in users' browsers, resulting in session hijacking, theft of sensitive information, or distribution of malware. This can damage brand reputation, lead to regulatory non-compliance (e.g., GDPR violations due to data leakage), and cause operational disruptions. Given the medium severity and requirement for user interaction, the threat is more pronounced in environments with high user engagement or where privileged users might be targeted. E-commerce, government, and financial sectors in Europe, which often use WordPress-based solutions, could face targeted attacks aiming to exploit this vulnerability for credential theft or phishing campaigns. The change in scope (S:C) indicates that the vulnerability could affect other components or users beyond the initial plugin context, increasing the potential impact on confidentiality and integrity of data across interconnected systems.

European organizations should immediately inventory their WordPress installations to identify the presence of the wpbakery Templatera plugin and its version. Until an official patch is released, organizations should implement strict Content Security Policies (CSP) to restrict the execution of unauthorized scripts and reduce the risk of DOM-based XSS exploitation. Input validation and output encoding should be enforced at the application level where possible. Administrators should limit user privileges to the minimum necessary to reduce the risk posed by low-privilege attackers. Monitoring and logging of suspicious activities related to script injection attempts should be enhanced. User awareness training should emphasize the risks of interacting with untrusted content or links, as user interaction is required for exploitation. Additionally, organizations should subscribe to vendor advisories and apply patches promptly once available. Web Application Firewalls (WAFs) can be configured to detect and block common XSS payloads targeting this plugin. Finally, regular security assessments and penetration testing focusing on client-side vulnerabilities should be conducted to identify and remediate similar issues proactively.