CVE-2020-14063

Name: CVE-2020-14063
Creator: NVD / NIST
Published: 2020-07-21T18:15:19.787+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.37%

Last modified Jun 17, 2026

CVE-2020-14063 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A stored Cross-Site Scripting (XSS) vulnerability in the TC Custom JavaScript plugin before 1.2.2 for WordPress allows unauthenticated remote attackers to inject arbitrary JavaScript via the tccj-content parameter. This is displayed in the page footer of every front-end page and executed in the browser of visitors.. EPSS estimates a 1.37% chance of exploitation in the next 30 days.

Description

A stored Cross-Site Scripting (XSS) vulnerability in the TC Custom JavaScript plugin before 1.2.2 for WordPress allows unauthenticated remote attackers to inject arbitrary JavaScript via the tccj-content parameter. This is displayed in the page footer of every front-end page and executed in the browser of visitors.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.37%

68.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Tc Custom Javascript Project	Tc Custom Javascript	< 1.2.2

References

https://wordpress.org/plugins/tc-custom-javascript/#developersRelease Notes, Third Party Advisory
https://www.wordfence.com/blog/2020/07/high-severity-vulnerability-patched-in-tc-custom-javascript/Exploit, Third Party Advisory
https://wordpress.org/plugins/tc-custom-javascript/#developersRelease Notes, Third Party Advisory
https://www.wordfence.com/blog/2020/07/high-severity-vulnerability-patched-in-tc-custom-javascript/Exploit, Third Party Advisory

Timeline

Published: Jul 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-14063?

How severe is CVE-2020-14063?

CVE-2020-14063 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.37% probability of exploitation in the next 30 days.

How do I fix CVE-2020-14063?

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-2020-14063?

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

Scan your code now

Source: NVD / NIST