A vulnerability classified as critical was found in PublicCMS 4.0.20180210. Affected by this vulnerability is an unknown part of the component File Upload. The manipulation as part of a ZIP Archive leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A remote code execution issue was discovered in PublicCMS V4.0.20180210. An attacker can upload a ZIP archive that contains a .jsp file with a directory traversal pathname. After an unzip operation, the attacker can execute arbitrary code by visiting a .jsp URI.

The bug was discovered 06/27/2018. The weakness was published 06/27/2018 (Website). The advisory is shared at github.com. This vulnerability is known as CVE-2018-12914 since 06/27/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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• PublicCMS

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• 4.0.20180210

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