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CVE-2021-39343

nvd nist
Published: Oct 19, 2021Modified: Jun 17, 2026

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4.8
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Exploitability: 1.7 / Impact: 2.7
Source: NVD

Description

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.

Affected (1)

Mpl Publisher
1 product
Mpl Publisher
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Mpl Publisher
Up to 1.30.2

Related CWEs

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.

References (6)

Source: security@wordfence.com
ExploitThird Party Advisory
Source: security@wordfence.com
ExploitThird Party Advisory
Source: security@wordfence.com
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.