CVE-2025-27334 is a Cross-site Scripting (XSS) vulnerability classified under CWE-79, specifically a DOM-Based XSS, found in the Ángel C. Simple Google Static Map plugin up to version 1.0.1. This vulnerability arises due to improper neutralization of input during web page generation, allowing malicious scripts to be injected and executed in the context of the victim's browser. The flaw is client-side (DOM-based), meaning the malicious payload is executed as a result of unsafe handling of user-controllable data within the Document Object Model, without proper sanitization or encoding. Exploiting this vulnerability requires an attacker to trick a user into interacting with a crafted URL or web page that leverages the vulnerable plugin’s handling of input parameters. The CVSS v3.1 base score is 6.5 (medium severity), reflecting a network attack vector with low attack complexity but requiring privileges and user interaction. The impact includes partial compromise of confidentiality, integrity, and availability of the affected web application and its users’ data. Since this vulnerability affects a plugin that integrates Google Static Maps, it is likely used in websites that display static map images with dynamic parameters, potentially in content management systems or custom web applications. No known exploits are currently reported in the wild, and no patches have been linked yet, indicating that mitigation may rely on vendor updates or manual code review and sanitization by site administrators.

For European organizations, the impact of this DOM-based XSS vulnerability can be significant, especially for those relying on the Simple Google Static Map plugin in their web infrastructure. Successful exploitation could lead to session hijacking, theft of sensitive user data, unauthorized actions performed on behalf of users, and potential spread of malware through injected scripts. This can damage organizational reputation, lead to regulatory non-compliance (e.g., GDPR violations due to data leakage), and cause operational disruptions. Since the vulnerability requires user interaction and some privilege level, targeted phishing or social engineering campaigns could be used to exploit it. Organizations in sectors such as e-commerce, government, education, and media that use this plugin to display maps may be particularly at risk. The medium CVSS score suggests a moderate but non-trivial risk that should be addressed promptly to prevent escalation or chaining with other vulnerabilities.

1. Immediate mitigation involves auditing all web applications using the Simple Google Static Map plugin to identify vulnerable versions (up to 1.0.1). 2. If vendor patches become available, apply them promptly. 3. In absence of patches, implement strict input validation and output encoding on all parameters passed to the plugin, especially those reflected in the DOM. 4. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts. 5. Educate users and administrators about the risks of clicking on suspicious links that could trigger the XSS. 6. Conduct thorough code reviews focusing on client-side scripts manipulating DOM elements with user input. 7. Consider disabling or replacing the plugin if immediate remediation is not feasible. 8. Monitor web traffic and logs for unusual activity that may indicate exploitation attempts. 9. Integrate automated scanning tools that detect DOM-based XSS patterns in web applications.