CVE-2025-7716 is a Cross-Site Scripting (XSS) vulnerability classified under CWE-79, affecting the Real-time SEO module for Drupal versions from 2.0.0 up to but not including 2.2.0. This vulnerability arises due to improper neutralization of input during web page generation, allowing an attacker to inject malicious scripts into web pages rendered by the affected module. Specifically, the flaw permits injection of arbitrary JavaScript code that executes in the context of users visiting the compromised pages. The vulnerability has a CVSS v3.1 base score of 6.1, indicating a medium severity level. The attack vector is network-based (AV:N), requiring no privileges (PR:N), but does require user interaction (UI:R), such as a user clicking a crafted link or visiting a malicious page. The scope is changed (S:C), meaning the vulnerability can affect resources beyond the vulnerable component. The impact affects confidentiality and integrity (C:L/I:L) but not availability (A:N). No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability was published on July 21, 2025, and affects a widely used SEO module that integrates with Drupal CMS, a popular content management system used globally for websites and web applications. Given the nature of XSS, successful exploitation could allow attackers to steal session cookies, perform actions on behalf of users, or redirect users to malicious sites, potentially leading to further compromise or data leakage.

For European organizations, this vulnerability poses a moderate risk, especially for those relying on Drupal with the Real-time SEO module installed. Many governmental, educational, and commercial websites in Europe use Drupal due to its flexibility and open-source nature. Exploitation could lead to unauthorized disclosure of sensitive information, session hijacking, or defacement of public-facing websites, undermining user trust and potentially violating data protection regulations such as GDPR. The integrity of web content could be compromised, affecting brand reputation and user confidence. Since the vulnerability requires user interaction, phishing campaigns or social engineering could be used to lure users into triggering the exploit. The scope change indicates that the impact could extend beyond the module itself, potentially affecting other parts of the Drupal site or connected systems. Although no active exploits are known, the medium CVSS score and the widespread use of Drupal in Europe necessitate proactive mitigation to prevent potential attacks.

European organizations should prioritize upgrading the Real-time SEO module to version 2.2.0 or later once available, as this will likely contain the necessary fixes. Until a patch is released, organizations should implement strict input validation and output encoding on all user-supplied data within the module's context to prevent script injection. Employing Content Security Policy (CSP) headers can help mitigate the impact of XSS by restricting the execution of unauthorized scripts. Web Application Firewalls (WAFs) configured to detect and block XSS payloads can provide an additional layer of defense. Regular security audits and code reviews of custom Drupal modules and themes should be conducted to identify similar vulnerabilities. User awareness training to recognize phishing attempts and suspicious links can reduce the risk of exploitation via user interaction. Monitoring web server logs and Drupal security advisories for updates or emerging exploit reports is also recommended. Finally, organizations should ensure that session management is robust, using secure cookies with HttpOnly and Secure flags to limit session hijacking risks.