CVE-2025-65271 is a client-side template injection vulnerability identified in the Azuriom CMS admin dashboard. This vulnerability allows a low-privilege user to inject and execute arbitrary template code in the context of an administrator's session. The root cause is the unsafe rendering of untrusted user input by plugins or dashboard components, which do not properly sanitize or validate the input before processing it within templates. This flaw enables attackers to escalate their privileges by executing code that the administrator's session context permits, effectively granting administrative control over the CMS. The vulnerability is classified under CWE-94 (Improper Control of Generation of Code), indicating that the system improperly handles code generation or execution. The CVSS v3.1 base score of 8.8 highlights the vulnerability's high severity, with network attack vector, low attack complexity, low privileges required, no user interaction needed, and high impact on confidentiality, integrity, and availability. Although no exploits have been reported in the wild, the potential for privilege escalation and full system compromise makes this a critical issue for affected users. The vulnerability was fixed in Azuriom version 1.2.7, and users are strongly advised to upgrade to this or later versions to mitigate the risk.

For European organizations using Azuriom CMS, this vulnerability poses a significant risk of administrative account compromise, which can lead to full control over the CMS environment. This could result in unauthorized data access, modification, or deletion, disruption of services, and potential lateral movement within the network. Given the CMS's role in managing content and possibly user data, exploitation could lead to data breaches impacting confidentiality and integrity. The ability to execute arbitrary code in an administrator's session context also raises the risk of deploying persistent backdoors or malware, further exacerbating the threat. Organizations in sectors such as government, education, and media, which may rely on Azuriom for content management, could face reputational damage and regulatory penalties under GDPR if sensitive data is compromised. The network-based attack vector and lack of required user interaction increase the likelihood of exploitation if the vulnerability is left unpatched.

European organizations should immediately verify their Azuriom CMS version and upgrade to version 1.2.7 or later, where the vulnerability is patched. In addition to patching, organizations should audit installed plugins and dashboard components to ensure they do not process untrusted input insecurely. Implement strict input validation and sanitization for all user-supplied data within templates. Employ role-based access controls to limit the number of users with low privileges who can access the admin dashboard or install plugins. Monitor administrative sessions for unusual activity that could indicate exploitation attempts. Consider deploying web application firewalls (WAFs) with rules designed to detect and block template injection patterns. Regularly review and update CMS components and plugins to minimize exposure to similar vulnerabilities. Finally, conduct security awareness training for administrators and developers on secure template handling and the risks of client-side injections.