CVE-2020-23839

Public Exploit

Description

A Reflected Cross-Site Scripting (XSS) vulnerability in GetSimple CMS v3.3.16, in the admin/index.php login portal webpage, allows remote attackers to execute JavaScript code in the client's browser and harvest login credentials after a client clicks a link, enters credentials, and submits the login form.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 14.04% Top 10%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory exploit-db.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1330 third party advisory exploit
http://packetstormsecurity.com/files/162016/GetSimple-CMS-3.3.16-Cross-Site-Scripting-Shell-Upload.html vdb entry third party advisory
https://www.exploit-db.com/exploits/49726 exploit vdb entry third party advisory
https://github.com/boku7/CVE-2020-23839 third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-23839?
CVE-2020-23839 has been scored as a medium severity vulnerability.
How to fix CVE-2020-23839?
To fix CVE-2020-23839, 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-2020-23839 being actively exploited in the wild?
It is possible that CVE-2020-23839 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~14% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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