Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

A vulnerability was found in ConcreteCMS up to 9.3.9 and classified as problematic. Affected by this issue is the function Save of the component Content Block Handler. The manipulation of the argument Source leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.