CVE-2021-37770

Public Exploit

Description

Nucleus CMS v3.71 is affected by a file upload vulnerability. In this vulnerability, we can use upload to change the upload path to the path without the Htaccess file. Upload an Htaccess file and write it to AddType application / x-httpd-php.jpg. In this way, an attacker can upload a picture with shell, treat it as PHP, execute commands, so as to take down website resources.

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.09%
Third-Party Advisory github.com Third-Party Advisory shimo.im
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/NucleusCMS/NucleusCMS/issues/96 third party advisory issue tracking exploit
https://shimo.im/docs/Ch9CphJt8XwTvQ3d third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-37770?
CVE-2021-37770 has been scored as a high severity vulnerability.
How to fix CVE-2021-37770?
To fix CVE-2021-37770, 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-2021-37770 being actively exploited in the wild?
It is possible that CVE-2021-37770 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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