MPL-Publisher <= 1.30.2 - Authenticated (Admin+) Stored Cross-Site Scripting

2021-10-15 19:23

Thinkland Security Team

Strategic Overview

Status

Patched in 1.30.3

Affected PluginMPL-Publisher — Ebook & Audiobook Creator

Affected Version<= 1.30.2

CVSS5.5Medium

CVECVE-2021-39343

View all MPL-Publisher — Ebook & Audiobook Creator vulnerabilities

Vulnerability Overview

The MPL-Publisher WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/libs/PublisherController.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 1.30.2. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

Technical Analysis

REMEDIATION: Update to version 1.30.3, 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-2021-39343 https://www.wordfence.com/threat-intel/vulnerabilities/id/f8d093ae-e0b1-49c2-a492-e01f2e954ddb

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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