The vulnerability identified as CVE-2025-49060 affects the CMSSuperHeroes Wastia content management system in versions prior to 1.1.3. It is characterized by an unrestricted file upload flaw that allows attackers to upload files of dangerous types, such as web shells, without proper validation or restriction. This lack of control enables an attacker to place malicious executable code on the web server, which can then be accessed remotely to execute arbitrary commands. The vulnerability does not require authentication or user interaction, increasing its exploitability. Once a web shell is uploaded, attackers can gain persistent access to the server, manipulate or exfiltrate data, pivot within the network, and potentially disrupt service availability. The vulnerability was reserved in May 2025 and published in October 2025, with no CVSS score assigned yet and no known exploits reported in the wild. The absence of patches at the time of reporting indicates that affected organizations must apply mitigations or updates as soon as they become available. The unrestricted upload issue likely stems from insufficient input validation and inadequate filtering of file types during the upload process within the Wastia CMS. This vulnerability is particularly dangerous because web shells are a common vector for post-exploitation activities and can lead to full system compromise.

For European organizations using CMSSuperHeroes Wastia CMS, this vulnerability presents a critical risk. Successful exploitation can lead to full compromise of web servers, exposing sensitive corporate or customer data and enabling attackers to move laterally within internal networks. This can result in data breaches, service outages, reputational damage, and regulatory penalties under GDPR. Organizations in sectors such as government, finance, healthcare, and critical infrastructure are especially vulnerable due to the sensitive nature of their data and the potential impact of service disruption. The ease of exploitation without authentication means that attackers can launch automated attacks at scale, increasing the likelihood of compromise. Additionally, the presence of web shells can facilitate further attacks such as ransomware deployment or espionage. The lack of a patch at the time of disclosure means organizations must rely on interim mitigations, increasing operational risk. The threat also extends to third-party service providers and hosting environments that support Wastia CMS installations across Europe.

European organizations should immediately audit their Wastia CMS installations to identify affected versions prior to 1.1.3. Until an official patch is released, implement strict file upload restrictions by configuring the web server and application to accept only safe file types (e.g., images) and reject executable or script files. Employ server-side validation to verify file extensions and MIME types, and use antivirus scanning on uploaded files. Disable or restrict file upload functionality where not necessary. Monitor web server logs and file system changes for signs of web shell uploads or suspicious activity. Employ web application firewalls (WAFs) with rules designed to detect and block web shell payloads and unusual upload patterns. Ensure that the CMS and underlying server software are updated regularly once patches become available. Conduct penetration testing and vulnerability scanning focused on file upload mechanisms. Educate development and operations teams about secure file handling practices. Finally, implement network segmentation and least privilege principles to limit the impact of any potential compromise.