CVE-2021-28428

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 05-04-2022 06:15

Last modified: - 15-04-2022 10:16

Total changes: - 2

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Low

Attack complexity

Network

Attack vector

High

Availability

High

Confidentiality

High

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

9.8

Base score

3.9

5.9

Exploitability score

Impact score

Verification logic

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=-

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=alpha

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=alpha2

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=alpha3

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=alpha4

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=alpha5

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=alpha6

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=alpha7

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=alpha8

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=beta

vendor=horizontcms_project AND product=horizontcms AND version=1.0.0 AND update=beta2

Reference

Keywords

CVE-2021-28428

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-28428

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures