CVE-2021-36911 MEDIUM

CVE-2021-36911: WordPress Comment Engine Pro plugin <= 1.0 - Stored Cross-Site Scripting (XSS) vulnerability

Vendor @Rex1989
Product Comment Engine Pro (WordPress plugin)
Weakness CWE-79 · XSS
Published December 10, 2021
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

4.8/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Stored Cross-Site Scripting (XSS) vulnerability discovered in WordPress Comment Engine Pro plugin (versions <= 1.0), could be exploited by users with Editor or higher role.

Explanation of Vulnerability in Simple Terms

02Summary

Comment Engine Pro version 1.0 contains a stored cross-site scripting (XSS) vulnerability in comment handling. An authenticated user with high privileges can inject malicious scripts that execute in other users' browsers when they view comments. The vulnerability requires user interaction and affects the integrity and confidentiality of site data.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts into comments that execute when other users view them.

Potential impact on your site

04Site Impact

Site admins or high-privilege users can inject scripts affecting other users' sessions and data.

Conditions required to exploit

05Prerequisites

Administrator or high-privilege account access; victim must view the affected comment.

Key dates

06Disclosure timeline

December 10, 2021 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-17162 WowStore <= 4.4.24 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'currentPostId' Block Attribute CVE-2026-15730 GamiPress <= 7.9.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'heading_size' Shortcode Attribute CVE-2026-15662 Advanced Woo Labels <= 2.48 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'bg_color' Parameter CVE-2026-15665 Fluent Support <= 2.3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'redirect-to' Shortcode Attribute CVE-2026-18344 Responsive Thumbnail Slider < 1.1.53 - Reflected Cross-Site Scripting via 'id' Parameter