TI-2021-06428 Aliases CVE-2021-24136 GHSA-r79g-qpgg-cqg5

Testimonials Widget < 4.0.0 - Multiple Authenticated Stored XSS

LOW 26CWE-79Published 2021-03-18 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Unvalidated input and lack of output encoding in the Testimonials Widget WordPress plugin, versions before 4.0.0, lead to multiple Cross-Site Scripting vulnerabilities, allowing remote attackers to inject arbitrary JavaScript code or HTML via the below parameters: - Author - Job Title - Location - Company - Email - URL

Why it matters now

EPSS 0.00822 57th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Testimonials Widget (Unknown): 4.0.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	Testimonials Widget	4.0.0 to before 4.0.0	4.0.0	Patch available	CNA

Testimonials Widget VendorUnknown Affected 4.0.0 to before 4.0.0 Fixed in 4.0.0 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:axelerant:testimonials_widget::::::wordpress::*	before 4.0.0	Vulnerable	Axelerant

cpe:2.3:a:axelerant:testimonials_widget:*:*:*:*:*:wordpress:*:* Versions before 4.0.0 Vulnerable ·Axelerant

Remediation

Fix · CNA Testimonials Widget (Unknown) Fixed in 4.0.0

Timeline

2026-10-02 Threatist record created from CVE-2021-24136
2026-10-03 Alias added: GHSA-r79g-qpgg-cqg5

References

Exploit 1

https://wpscan.com/vulnerability/537ee410-3833-4e88-9d4a-ee3c72b44ca1

TI-2024-25053 WordPress Testimonials Widget plugin <= 4.0.4 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
TI-2024-04378 Testimonials Widget <= 4.0.4 - Authenticated (Author+) Stored Cross-Site Scripting via testimonials Shortcode CVSS 3.1MEDIUM 6.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences