CVE-2021-24492: Handsome Testimonials & Reviews < 2.1.1 - Authenticated (Subscriber+) SQL Injection

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-08-02 · updated 2026-06-17
Weakness: CWE-89

Description

The hndtst_action_instance_callback AJAX call of the Handsome Testimonials & Reviews WordPress plugin before 2.1.1, available to any authenticated users, does not sanitise, validate or escape the hndtst_previewShortcodeInstanceId POST parameter before using it in a SQL statement, leading to an SQL Injection issue.

Affected products

Handsome Testimonials & Reviews: before 2.1.1 — fixed in 2.1.1

How to fix

Upgrade to a fixed version: Handsome Testimonials & Reviews 2.1.1. Check the vendor advisory for mitigations.

References

https://codevigilant.com/disclosure/2021/wp-plugin-handsome-testimonials/
https://wpscan.com/vulnerability/42760007-0e59-4d45-8d64-86bc0b8dacea
https://codevigilant.com/disclosure/2021/wp-plugin-handsome-testimonials/
https://wpscan.com/vulnerability/42760007-0e59-4d45-8d64-86bc0b8dacea

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