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CVE-2021-28428

CVE information

Published

1 year ago

Last Modified

1 year ago

CVSSv2.0 Severity

High

CVSSv3.1 Severity

Critical

Impact Analysis

Description

File upload vulnerability in HorizontCMS before 1.0.0-beta.3 via uploading a .htaccess and *.hello files using the Media Files upload functionality. The original file upload vulnerability (CVE-2020-27387) was remediated by restricting the PHP extensions; however, we confirmed that the filter was bypassed via uploading an arbitrary .htaccess and *.hello files in order to execute PHP code to gain RCE..

CVSSv2.0 Score

Severity
High
Base Score
7.5/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
6.4/10
Confidentiality Impact
Partial
Availability Impact
Partial
Integrity Impact
Partial

CVSSv3.1 Score

Severity
Critical
Base Score
9.8/10
Exploit Score
3.9/10
Access Vector
Network
Access Complexity
Low
Privileges Required
None
Impact Score
5.9/10
Confidentiality Impact
High
Availability Impact
High
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:beta:*:*:*:*
  Yes
- -
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha:*:*:*:
  Yes
- -
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha2:*:*:*
  Yes
- -
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha3:*:*:*
  Yes
- -
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha4:*:*:*
  Yes
- -
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha5:*:*:*
  Yes
- -
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha6:*:*:*
  Yes
- -
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha7:*:*:*
  Yes
- -
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:alpha8:*:*:*
  Yes
- -
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:beta2:*:*:*:
  Yes
- -
cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:-:*:*:*:*:*:
  Yes
- -