A vulnerability was found in CSZCMS 1.3.0. It has been classified as problematic. This affects an unknown part of the file /admin/settings/ of the component Site Settings Page. The manipulation of the argument Additional Meta Tag with the input
<svg><animate onbegin=alert(1) attributeName=x dur=1s> leads to cross site scripting.
This vulnerability is uniquely identified as CVE-2023-6303. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.
The vendor was contacted early about this disclosure but did not respond in any way.
