CVE-2021-44912 Information

Description

In XE 1.116 when uploading the Normal button there is no restriction on the file suffix which leads to any file uploading to the files directory. Since .htaccess only restricts the PHP type uploading HTML-type files leads to stored XSS vulnerabilities. If the .htaccess configuration is improper for example before the XE 1.11.2 version you can upload the PHP type file to GETSHELL.

CVSS Vector

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

Reference

https://github.com/xpressengine/xe-core/issues/2433

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4