CVE-2020-29455

Name: CVE-2020-29455
Creator: NVD / NIST
Published: 2020-12-11T20:15:16.703+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.15%

Last modified Jun 17, 2026

CVE-2020-29455 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A cross-Site Scripting (XSS) vulnerability in this.showInvalid and this.showInvalidCountry in SmartyStreets liveAddressPlugin.js 3.2 allows remote attackers to inject arbitrary web script or HTML via any address parameter (e.g., street or country).. EPSS estimates a 1.15% chance of exploitation in the next 30 days.

Description

A cross-Site Scripting (XSS) vulnerability in this.showInvalid and this.showInvalidCountry in SmartyStreets liveAddressPlugin.js 3.2 allows remote attackers to inject arbitrary web script or HTML via any address parameter (e.g., street or country).

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

1.15%

62.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Smartystreets	Liveaddressplugin.Js	3.2

References

https://github.com/smartystreets-archivesThird Party Advisory
https://jsfiddle.net/smartystreets/Lx2dbsaa/Third Party Advisory
https://www.guidepointsecurity.com/liveaddressplugin-js-vulnerability-disclosure/Exploit, Third Party Advisory
https://github.com/smartystreets-archivesThird Party Advisory
https://jsfiddle.net/smartystreets/Lx2dbsaa/Third Party Advisory
https://www.guidepointsecurity.com/liveaddressplugin-js-vulnerability-disclosure/Exploit, Third Party Advisory

Timeline

Published: Dec 11, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-29455?

How severe is CVE-2020-29455?

CVE-2020-29455 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.15% probability of exploitation in the next 30 days.

How do I fix CVE-2020-29455?

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-2020-29455?

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

Scan your code now

Source: NVD / NIST