CVE-2025-29093 is a high-severity file upload vulnerability identified in the Motivian Content Management System (CMS) version 41.0.0. The vulnerability resides specifically within the Content/Gallery/Images component of the CMS, which allows remote attackers to upload malicious files without authentication or user interaction. This flaw is classified under CWE-434, which pertains to unrestricted file upload vulnerabilities. Exploitation of this vulnerability enables an attacker to execute arbitrary code on the affected server, potentially leading to full system compromise. The CVSS 3.1 base score of 8.2 reflects the ease of exploitation (network vector, low attack complexity, no privileges required, no user interaction) and the significant impact on integrity (high) and confidentiality (low), while availability remains unaffected. Since the vulnerability allows remote code execution through file upload, attackers can deploy web shells or other malicious payloads, facilitating persistent access, data exfiltration, or lateral movement within the network. No patches or mitigations have been publicly disclosed at the time of publication, and no known exploits are reported in the wild yet, but the high severity and nature of the vulnerability make it a critical risk for organizations using this CMS version.

For European organizations utilizing the Motivian CMS version 41.0.0, this vulnerability poses a substantial risk. Successful exploitation could lead to unauthorized code execution on web servers hosting sensitive content, potentially compromising confidential data, intellectual property, and user information. Given the CMS's role in managing digital content, attackers could manipulate or deface websites, disrupt business operations, or use compromised servers as pivot points for further attacks within corporate networks. The breach of integrity could damage brand reputation and result in regulatory penalties under GDPR if personal data is exposed. Additionally, the lack of authentication and user interaction requirements lowers the barrier for attackers, increasing the likelihood of exploitation. Organizations in sectors such as government, finance, healthcare, and media—where content management systems are critical—are particularly vulnerable. The absence of known exploits currently provides a window for proactive mitigation, but the potential impact remains high.

European organizations should immediately assess their exposure to Motivian CMS version 41.0.0 and prioritize remediation. Specific mitigation steps include: 1) Applying any available patches or updates from the vendor as soon as they are released; 2) Implementing strict file upload validation controls, such as restricting allowed file types, enforcing file size limits, and scanning uploaded files for malware; 3) Employing web application firewalls (WAFs) with custom rules to detect and block suspicious file upload attempts targeting the Content/Gallery/Images component; 4) Isolating the CMS environment using network segmentation to limit lateral movement if compromise occurs; 5) Monitoring server logs and file system changes for unusual activity indicative of exploitation attempts; 6) Disabling or restricting file upload functionality where not essential; 7) Conducting regular security audits and penetration testing focused on file upload mechanisms; and 8) Educating IT and security teams about this vulnerability to ensure rapid detection and response. These measures go beyond generic advice by focusing on the specific vulnerable component and attack vector.