S40 CMS 0.4.2 File Extension index.php path traversal

Summaryinfo

A vulnerability labeled as critical has been found in S40 CMS 0.4.2. Impacted is an unknown function of the file index.php of the component File Extension Handler. Executing a manipulation of the argument p can lead to path traversal. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is registered as CVE-2011-10009. It is possible to launch the attack remotely. Furthermore, an exploit is available.

Detailsinfo

A vulnerability classified as critical was found in S40 CMS 0.4.2. This vulnerability affects an unknown part of the file index.php of the component File Extension Handler. The manipulation of the argument p with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

S40 CMS v0.4.2 contains a path traversal vulnerability in its index.php page handler. The p parameter is not properly sanitized, allowing attackers to traverse the file system and access arbitrary files outside the web root. This can be exploited remotely without authentication by appending traversal sequences and a null byte to bypass file extension checks.

The weakness was published by Osirys. The advisory is available at raw.githubusercontent.com. This vulnerability was named CVE-2011-10009 since 08/11/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:index.php it is possible to find vulnerable targets with Google Hacking.

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

The vulnerability is also documented in the databases at Exploit-DB (17129) and EUVD (EUVD-2011-5242). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Content Management System

Vendor

• S40

Name

• CMS

Version

• 0.4.2

Support

• end of life

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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