CVE-2021-36858 MEDIUM

CVE-2021-36858: WordPress Testimonials plugin <= 2.6 - Auth. Stored Cross-Site Scripting (XSS) vulnerability

Vendor Themepoints

Product Testimonials (WordPress plugin)

Weakness CWE-79 · XSS

Published October 28, 2022

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

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Themepoints Testimonials plugin <= 2.6 on WordPress.

Explanation of Vulnerability in Simple Terms

02Summary

The Testimonials plugin for WordPress versions 2.6 and earlier contains a stored cross-site scripting (XSS) vulnerability. An authenticated user with high privileges can inject malicious JavaScript that executes in the browsers of other site visitors. The vulnerability requires user interaction to trigger and affects the plugin's data integrity and confidentiality.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that runs in visitors' browsers when they view affected plugin content.

Potential impact on your site

04Site Impact

Site visitors may be redirected, have sessions hijacked, or see malicious content injected by a privileged user.

Conditions required to exploit

05Prerequisites

Attacker must have high-level WordPress privileges (e.g., admin or editor role) and a victim must view the affected page.

Key dates

06Disclosure timeline

October 28, 2022 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2021-36858 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

Related vulnerabilities

Identifiers

CVE CVE-2021-36858

CWE CWE-79

CVSS 4.8 / MEDIUM

Affected versions