CVE-2020-21494

Public Exploit

Description

A cross-site scripting (XSS) vulnerability in the component install\install.sql of Xiuno BBS 4.0.4 allows attackers to execute arbitrary web scripts or HTML via changing the doctype value to 0.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.30%
Third-Party Advisory gitee.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://gitee.com/xiuno/xiunobbs/issues/I16BHH issue tracking third party advisory
https://github.com/wanghaiwei/xiuno-docker/issues/4 issue tracking exploit third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-21494?
CVE-2020-21494 has been scored as a medium severity vulnerability.
How to fix CVE-2020-21494?
To fix CVE-2020-21494, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-21494 being actively exploited in the wild?
It is possible that CVE-2020-21494 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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