CVE-2026-108540
CriticalCVSS 9.9Summary
A flaw has been found in OpenSpug Spug up to 3.4.0/4.0.1, impacting the File Transfer component in the /exec/transfer file. Input manipulation can lead to OS command injection. The attack can be launched remotely and the exploit has been publicly disclosed.
Risk Assessment
The vulnerability allows remote execution of arbitrary OS commands on the server, potentially leading to full system compromise. The vendor's lack of response means a patch may not be available.
Recommendation
Immediately restrict access to the /exec/transfer interface and consider deploying WAF rules to block command injection attempts. Monitor for patch availability and consider alternative solutions.
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Original NVD description (English source)
A flaw has been found in OpenSpug Spug up to 3.4.0/4.0.1. This impacts an unknown function of the file /exec/transfer of the component File Transfer. Executing a manipulation can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS