Cross Site Scripting and RCE in baserCMS · CVE-2020-15159 · GitHub Advisory Database · GitHub

Cross Site Scripting and RCE in baserCMS

Low severity GitHub Reviewed Published Aug 27, 2020 in baserproject/basercms • Updated Jan 9, 2023

Package

baserproject/basercms (Composer)

Affected versions

>= 4.0.0, <= 4.3.6

Patched versions

4.3.7

Description

baserCMS 4.3.6 and earlier is affected by Cross Site Scripting (XSS) and Remote Code Execution (RCE).

Impact: XSS to RCE via Arbitrary file upload.
Attack vector is: Administrator must be logged in.
Components are: ThemeFilesController.php, UploaderFilesController.php.
Tested baserCMS Version : 4.3.6 (Latest)
Affected baserCMS Version : 4.2.0 ~ 4.3.6 (XSS), 3.0.10 ~ 4.3.6 (RCE)
Patches : https://basercms.net/security/20200827

Found by Vulnerability Research team in Flatt Security Inc.

References

baserproject published to baserproject/basercms

Aug 27, 2020

Reviewed Aug 28, 2020

Published to the GitHub Advisory Database Aug 28, 2020

Last updated Jan 9, 2023