CVE-2021-27520

Public Exploit

Description

A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "author" parameter.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.12% Top 25%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/fudforum/FUDforum/issues/2 issue tracking patch exploit third party advisory
http://packetstormsecurity.com/files/162942/FUDForum-3.1.0-Cross-Site-Scripting.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-27520?
CVE-2021-27520 has been scored as a medium severity vulnerability.
How to fix CVE-2021-27520?
To fix CVE-2021-27520, 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-2021-27520 being actively exploited in the wild?
It is possible that CVE-2021-27520 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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