LearnPress <= 4.1.3.1 - Stored Cross-Site Scripting via $custom_profile

2021-10-18 17:16

Thinkland Security Team

Strategic Overview

Status

Patched in 4.1.3.2

Affected PluginLearnPress – WordPress LMS Plugin for Create and Sell Online Courses

Affected Version<= 4.1.3.1

CVSS5.5Medium

CVECVE-2021-39348

View all LearnPress – WordPress LMS Plugin for Create and Sell Online Courses vulnerabilities

Vulnerability Overview

The LearnPress WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient escaping on the $custom_profile parameter found in the ~/inc/admin/views/backend-user-profile.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 4.1.3.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled. Please note that this is seperate from CVE-2021-24702.

Technical Analysis

REMEDIATION: Update to version 4.1.3.2, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2021-39348 https://www.wordfence.com/threat-intel/vulnerabilities/id/5d652b50-9c9c-4418-bd6b-ae862a1c8786

CVSS Vector

5.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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