A vulnerability was found in Discuz! DiscuzX X3.4. It has been classified as problematic. Affected is an unknown functionality of the file include\spacecp\spacecp_space.php. The manipulation of the argument appid as part of a Parameter leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

Discuz! DiscuzX X3.4 has XSS via the include\spacecp\spacecp_space.php appid parameter in a delete action.

The bug was discovered 01/10/2018. The weakness was published 01/12/2018 (Website). The advisory is shared for download at whsgwl.net. This vulnerability is traded as CVE-2018-5375 since 01/12/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:include\spacecp\spacecp_space.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.

Similar entries are available at 111842 and 111841.

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• Discuz!

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• DiscuzX

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• X3.4

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CPE 2.2info

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