CVE-2022-4577: Easy Testimonials < 3.9.3 - Contributor+ Stored XSS

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
Weakness: CWE-79

Description

The Easy Testimonials WordPress plugin before 3.9.3 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

ghuger Easy Testimonials: before 3.9.3 — fixed in 3.9.3

How to fix

Upgrade to a fixed version: ghuger Easy Testimonials 3.9.3. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/85d9fad7-ba3d-4140-ae05-46262d2643e6
https://wpscan.com/vulnerability/85d9fad7-ba3d-4140-ae05-46262d2643e6

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