CVE-2022-4717: Strong Testimonials < 3.0.3 - Contributor+ Stored XSS via Shortcode

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-02-06 · updated 2026-06-17

Description

The Strong Testimonials WordPress plugin before 3.0.3 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Affected products

machothemes Strong Testimonials: before 3.0.3 — fixed in 3.0.3

How to fix

Upgrade to a fixed version: machothemes Strong Testimonials 3.0.3. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/14b679f5-44a8-46d4-89dd-94eb647cb672
https://wpscan.com/vulnerability/14b679f5-44a8-46d4-89dd-94eb647cb672

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