CVE-2020-15159

Cross Site Scripting leading to RCE in baserCMS

Description

baserCMS 4.3.6 and earlier is affected by Cross Site Scripting (XSS) and Remote Code Execution (RCE). This may be executed by logging in as a system administrator and uploading an executable script file such as a PHP file.The affected components are ThemeFilesController.php and UploaderFilesController.php. This is fixed in version 4.3.7.

Category

7.6
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.60% Top 20%
Vendor Advisory basercms.net
Affected: baserproject basercms
Published at:
Updated at:

References

Link Tags
https://basercms.net/security/20200827 vendor advisory
https://github.com/baserproject/basercms/security/advisories/GHSA-673x-f5wx-fxpw third party advisory patch
https://github.com/baserproject/basercms/commit/16a7b3cd09a0ca355474119c76897eac2034a66d third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-15159?
CVE-2020-15159 has been scored as a high severity vulnerability.
How to fix CVE-2020-15159?
To fix CVE-2020-15159, 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-2020-15159 being actively exploited in the wild?
It is possible that CVE-2020-15159 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-15159?
CVE-2020-15159 affects baserproject basercms.
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