CVE-2021-28998

Public Exploit

Description

File upload vulnerability in CMS Made Simple through 2.2.15 allows remote authenticated attackers to gain a webshell via a crafted phar file.

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.31%
Third-Party Advisory seclists.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://seclists.org/fulldisclosure/2021/Mar/50 third party advisory mailing list
https://github.com/beerpwn/CVE/blob/master/cms_made_simple_2021/file_upload_RCE/File_upload_to_RCE.md exploit

Frequently Asked Questions

What is the severity of CVE-2021-28998?
CVE-2021-28998 has been scored as a high severity vulnerability.
How to fix CVE-2021-28998?
To fix CVE-2021-28998, 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-2021-28998 being actively exploited in the wild?
It is possible that CVE-2021-28998 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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