CVE-2025-57938 is a DOM-based Cross-site Scripting (XSS) vulnerability identified in the themewant Easy Hotel Booking plugin, affecting versions up to and including 1.6.9. This vulnerability arises from improper neutralization of input during web page generation, classified under CWE-79. Specifically, the plugin fails to adequately sanitize or encode user-supplied data before incorporating it into the Document Object Model (DOM), allowing attackers to inject malicious scripts that execute in the context of the victim's browser. The CVSS 3.1 base score of 6.5 reflects a medium severity level, with an attack vector of network (remote exploitation), low attack complexity, requiring privileges (PR:L) and user interaction (UI:R), and a scope change (S:C). The impact includes limited confidentiality, integrity, and availability consequences, as the vulnerability can lead to theft of session tokens, manipulation of web content, or redirection to malicious sites. No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability affects the Easy Hotel Booking plugin, which is commonly used by hospitality businesses to manage bookings on WordPress sites, making it a relevant threat to organizations relying on this software for online reservation systems.

For European organizations, especially those in the hospitality sector using the themewant Easy Hotel Booking plugin, this vulnerability poses a risk of client-side attacks that can compromise user trust and data privacy. Exploitation could lead to session hijacking, unauthorized actions on behalf of users, or distribution of malware through injected scripts. This could result in reputational damage, regulatory non-compliance (notably with GDPR due to potential personal data exposure), and financial losses from disrupted booking operations. Given the medium severity and requirement for user interaction, the threat is more pronounced in environments with high web traffic and less stringent input validation controls. Additionally, attackers could leverage this vulnerability as an entry point for broader attacks against the affected organization's network or customers.

Organizations should prioritize updating the Easy Hotel Booking plugin to a patched version once available. In the interim, implement strict Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of DOM-based XSS. Employ web application firewalls (WAFs) with rules targeting XSS patterns specific to this plugin. Conduct thorough input validation and output encoding on all user-supplied data within the booking system, particularly in customizations or integrations. Regularly audit and monitor web traffic for anomalous script injections or unusual user behavior. Educate users about the risks of interacting with suspicious links or inputs on booking pages. Finally, maintain up-to-date backups and incident response plans tailored to web application attacks.