CVE-2021-23347

Name: CVE-2021-23347
Creator: NVD / NIST
Published: 2021-03-03T10:15:13.753+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2021-23347 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. The package github.com/argoproj/argo-cd/cmd before 1.7.13, from 1.8.0 and before 1.8.6 are vulnerable to Cross-site Scripting (XSS) the SSO provider connected to Argo CD would have to send back a malicious error message containing JavaScript to the user.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

The package github.com/argoproj/argo-cd/cmd before 1.7.13, from 1.8.0 and before 1.8.6 are vulnerable to Cross-site Scripting (XSS) the SSO provider connected to Argo CD would have to send back a malicious error message containing JavaScript to the user.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.53%

41.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Argoproj	Argo Cd	< 1.7.13
Argoproj	Argo Cd	>= 1.8.0, < 1.8.6

References

https://github.com/argoproj/argo-cd/pull/5563Patch, Third Party Advisory
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMARGOPROJARGOCDCMD-1078291Third Party Advisory
https://github.com/argoproj/argo-cd/pull/5563Patch, Third Party Advisory
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMARGOPROJARGOCDCMD-1078291Third Party Advisory

Timeline

Published: Mar 3, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23347?

How severe is CVE-2021-23347?

CVE-2021-23347 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23347?

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-2021-23347?

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

Scan your code now

Source: NVD / NIST