CVE-2021-24136

Name: CVE-2021-24136
Creator: NVD / NIST
Published: 2021-03-18T15:15:14.683+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.82%

Last modified Jun 17, 2026

CVE-2021-24136 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.82% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.82%

52.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Axelerant	Testimonials Widget	< 4.0.0

References

https://wpscan.com/vulnerability/537ee410-3833-4e88-9d4a-ee3c72b44ca1Exploit, Third Party Advisory
https://wpscan.com/vulnerability/537ee410-3833-4e88-9d4a-ee3c72b44ca1Exploit, Third Party Advisory

Timeline

Published: Mar 18, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24136?

How severe is CVE-2021-24136?

CVE-2021-24136 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.82% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24136?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-24136?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST