CVE-2025-70831 in Smanga
Summary
by MITRE • 02/20/2026
A Remote Code Execution (RCE) vulnerability was found in Smanga 3.2.7 in the /php/path/rescan.php interface. The application fails to properly sanitize user-supplied input in the mediaId parameter before using it in a system shell command. This allows an unauthenticated attacker to inject arbitrary operating system commands, leading to complete server compromise.
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Analysis
by VulDB Data Team • 02/27/2026
This vulnerability represents a critical remote code execution flaw in the Smanga 3.2.7 web application where the /php/path/rescan.php endpoint fails to properly validate and sanitize user input. The specific weakness lies in the mediaId parameter which is directly incorporated into system shell commands without adequate sanitization measures. This type of vulnerability falls under the CWE-77 category known as "Improper Neutralization of Special Elements used in a Command ('Command Injection')", which is classified as a high-severity issue in the CWE top 25 most dangerous software weaknesses list. The attack vector is particularly concerning as it allows unauthenticated remote exploitation, meaning any attacker with network access can leverage this vulnerability without requiring prior authentication credentials.
The technical implementation of this flaw demonstrates a classic command injection vulnerability where user-supplied data flows directly into operating system command execution contexts. When an attacker submits a malicious mediaId parameter, the application constructs a shell command using this input without proper escaping or validation, creating an environment where arbitrary commands can be executed with the privileges of the web application user. This represents a fundamental breakdown in input validation and output encoding practices that violates core security principles. The vulnerability can be exploited through various command injection techniques including the use of shell metacharacters such as semicolons, ampersands, or backticks to chain multiple commands or execute alternative operations.
From an operational impact perspective, this vulnerability creates a complete compromise scenario for affected systems. An attacker can execute arbitrary code on the server, potentially leading to data exfiltration, system enumeration, privilege escalation, or even the establishment of persistent backdoors. The compromised server may be used as a launchpad for further attacks within the network infrastructure, making this vulnerability particularly dangerous in enterprise environments. The lack of authentication requirements means that attackers can exploit this vulnerability at scale without detection, potentially affecting multiple installations simultaneously. This aligns with ATT&CK technique T1059.001 for command and scripting interpreter and T1078.004 for valid accounts, as the vulnerability enables attackers to execute system commands and potentially escalate privileges through compromised application accounts.
Mitigation strategies should focus on immediate input validation and sanitization implementation, followed by comprehensive security hardening measures. The primary fix involves implementing strict input validation for the mediaId parameter to reject potentially dangerous characters and patterns, while also employing proper shell command escaping or parameterization techniques. Organizations should deploy web application firewalls to detect and block malicious command injection attempts, and implement network segmentation to limit the potential impact of successful exploitation. Regular security updates and patches should be applied to prevent similar vulnerabilities in future releases, while also conducting thorough code reviews to identify other potential injection points within the application. The remediation process should include implementing principle of least privilege for web application accounts, ensuring that compromised applications cannot escalate privileges beyond their intended scope. Additionally, monitoring and logging mechanisms should be enhanced to detect suspicious command execution patterns that may indicate exploitation attempts.