CVE-2026-24788 is an OS command injection vulnerability identified in the raspap-webgui component of the RaspAP project, affecting all versions prior to 3.3.6. The flaw arises from improper neutralization of special characters in user-supplied input that is passed to OS commands, allowing an authenticated user to execute arbitrary commands on the underlying operating system. The vulnerability requires the attacker to have valid login credentials, but no additional user interaction is necessary. The CVSS 3.0 base score of 8.8 reflects the vulnerability's high impact on confidentiality, integrity, and availability, as successful exploitation could lead to full system compromise, data exfiltration, or denial of service. Raspap-webgui is commonly used to manage wireless access points and network configurations on Raspberry Pi devices, which are popular in small office, home office (SOHO), and IoT environments. The vulnerability is remotely exploitable over the network, increasing its risk profile. Although no public exploits have been reported yet, the presence of this vulnerability in widely deployed network management tools necessitates urgent remediation. The root cause is insufficient input validation and sanitization before passing parameters to OS-level commands, a classic injection flaw. The fix involves proper escaping or disallowing of special characters and updating to version 3.3.6 or later where the issue is resolved.

For European organizations, this vulnerability poses a significant threat to network infrastructure security, especially for those utilizing Raspberry Pi devices running raspap-webgui to manage wireless networks or gateways. Exploitation could allow attackers to execute arbitrary commands, potentially leading to unauthorized access to sensitive data, disruption of network services, or pivoting to other internal systems. This risk is particularly acute in sectors relying on IoT and edge computing, such as manufacturing, smart cities, and critical infrastructure, where Raspberry Pi devices are often deployed. The compromise of such devices could undermine operational continuity and data confidentiality. Additionally, given the remote exploitability and lack of need for user interaction beyond authentication, attackers with stolen or weak credentials could leverage this vulnerability to gain persistent footholds. The absence of known exploits in the wild currently reduces immediate risk but does not diminish the urgency for patching. Failure to address this vulnerability could result in regulatory non-compliance under GDPR if personal data is exposed or systems are disrupted.

European organizations should immediately upgrade all raspap-webgui instances to version 3.3.6 or later, where the vulnerability is patched. Until upgrades are applied, restrict access to the raspap-webgui interface using network segmentation, firewall rules, or VPNs to limit exposure to trusted users only. Implement strong authentication mechanisms, including multi-factor authentication, to reduce the risk of credential compromise. Conduct regular audits of user accounts and access logs to detect suspicious activity indicative of attempted exploitation. Employ host-based intrusion detection systems (HIDS) to monitor for anomalous command execution patterns on Raspberry Pi devices. Additionally, consider deploying application-layer firewalls or web application firewalls (WAFs) that can detect and block injection attempts targeting the raspap-webgui interface. Educate administrators on the risks of command injection and the importance of timely patching. Finally, maintain an inventory of all Raspberry Pi devices running raspap-webgui to ensure comprehensive coverage during remediation efforts.