A vulnerability, which was classified as problematic, has been found in Questwork QuestCMS (version now known). Affected by this issue is some unknown processing. The manipulation of the argument cx with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

Cross-site scripting (XSS) vulnerability in main/main.php in QuestCMS allows remote attackers to inject arbitrary web script or HTML via the cx parameter.

The weakness was published 10/28/2008 (Website). The advisory is available at milw0rm.com. This vulnerability is handled as CVE-2008-4774 since 10/28/2008. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

A public exploit has been developed by d3b4g and been published before and not just after the advisory. The exploit is available at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

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 X-Force (46149), Exploit-DB (6853) and SecurityFocus (BID 31945†). Similar entries are available at VDB-44749 and VDB-44748.

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• Questwork

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• QuestCMS

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