Medium severity · published Sep 1, 2020
CVE-2020-23839
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…
6.1
CVSS
10.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)10.5% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GC
Getsimple Cms · Get-simple
3.3.16 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-23839
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-23839
Third Party Advisory
http://packetstormsecurity.com/files/162016/GetSimple-CMS-3.3.16-Cross-Site-Scripting-Shell-Upload.html
Exploit
https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1330
Third Party Advisory
https://github.com/boku7/CVE-2020-23839
Third Party Advisory
https://www.exploit-db.com/exploits/49726
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