Vulnerability · Published Jun 30, 2022 · Assigned by mitre
CVE-2021-37770
High 7.2
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities).
Severity (CVSS NVD)7.2High
Exploit odds (30 days)1.3%top 28.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
References
- https://github.com/NucleusCMS/NucleusCMS/issues/96 x_refsource_MISC
- https://shimo.im/docs/Ch9CphJt8XwTvQ3d x_refsource_MISC