A cross-site scripting (XSS) vulnerability in the component installinstall.sql of Xiuno BBS 4.0.4 allows attackers to execute arbitrary web scripts or HTML via changing the doctype value to 0.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21494
Reference (s):
- https://gitee.com/xiuno/xiunobbs/issues/I16BHH
- https://github.com/wanghaiwei/xiuno-docker/issues/4