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Cross Site Scripting and RCE in baserCMS

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

Package

composer 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 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

Severity

Low

EPSS score

0.902%
(83rd percentile)

Weaknesses

CVE ID

CVE-2020-15159

GHSA ID

GHSA-673x-f5wx-fxpw

Source code

No known source code

Credits

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