CVE-2025-11331 is a command injection vulnerability identified in IdeaCMS, a content management system, affecting all versions up to 1.8. The flaw exists in an unspecified function within the file app/common/logic/admin/Config.php, part of the Website Name Handler component. The vulnerability is triggered by manipulating the argument named 网站名称 (Chinese for 'website name'), which is improperly sanitized or validated, allowing an attacker to inject and execute arbitrary system commands remotely. The attack vector is network-based, requiring no user interaction or authentication, which significantly lowers the barrier to exploitation. The CVSS 4.0 score is 5.1 (medium), reflecting the moderate impact and ease of exploitation with some privileges required (PR:H). The vulnerability impacts confidentiality, integrity, and availability to a limited extent due to the partial scope and requirement for some privileges. The vendor was notified early but has not issued any patches or advisories, and no known exploits have been observed in the wild yet. The public disclosure of the exploit increases the risk of future attacks. Organizations running IdeaCMS should consider this vulnerability critical to their web infrastructure security posture.

For European organizations, this vulnerability poses a risk of unauthorized remote command execution on servers running vulnerable versions of IdeaCMS, potentially leading to data breaches, defacement, or service disruption. The impact includes possible compromise of sensitive data, unauthorized access to backend systems, and disruption of web services. Given that IdeaCMS is a web-facing application, exploitation could facilitate lateral movement within networks or serve as a foothold for further attacks. The lack of vendor response and patches increases the risk exposure. Organizations in sectors with stringent data protection requirements, such as finance, healthcare, and government, could face regulatory and reputational damage if exploited. The medium severity indicates that while the vulnerability is serious, exploitation requires some level of privilege, which may limit immediate widespread impact but still demands urgent attention.

Since no official patches are available, European organizations should implement the following mitigations: 1) Immediately audit and restrict access to the admin interface and the affected component (Website Name Handler) to trusted IPs or VPNs. 2) Employ web application firewalls (WAFs) with custom rules to detect and block suspicious payloads targeting the 网站名称 parameter. 3) Conduct code reviews and apply manual input validation and sanitization on the affected argument if source code access is available. 4) Monitor logs for unusual command execution patterns or anomalies related to the vulnerable component. 5) Consider isolating or sandboxing the web server environment to limit the impact of potential command execution. 6) Plan for migration to alternative CMS platforms or wait for vendor updates while maintaining heightened monitoring. 7) Educate administrators about the vulnerability and enforce the principle of least privilege for all CMS-related accounts.