CVE-2021-41243
Critical
Description
There is a Potential Zip Slip Vulnerability and OS Command Injection Vulnerability on the management system of baserCMS. Users with permissions to upload files may upload crafted zip files which may execute arbitrary commands on the host operating system. This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users. If you are eligible, please update to the new version as soon as possible.
SeverityCritical
CVSS9.1
Exploit probability—
ProductBasercms
PublishedNov 26, 2021
First seenNov 26, 2021
Weakness typeCWE-78OS command injection
How to fix
Update
- basercms basercms4.5.4 or later
- baserproject/basercms4.5.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| basercms basercms | v < 4.5.4 | 4.5.4 |
| baserproject/basercmsPackagist | v < 4.5.4 | 4.5.4 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.