CVE-2021-31898

Name: CVE-2021-31898
Creator: NVD / NIST
Published: 2021-05-11T13:15:12.723+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2021-31898 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In JetBrains WebStorm before 2021.1, HTTP requests were used instead of HTTPS.. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

In JetBrains WebStorm before 2021.1, HTTP requests were used instead of HTTPS.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.63%

45.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-319

Affected Software

Vendor	Product	Versions
Jetbrains	Webstorm	< 2021.1

References

https://blog.jetbrains.comVendor Advisory
https://blog.jetbrains.com/blog/2021/05/07/jetbrains-security-bulletin-q1-2021/Vendor Advisory
https://blog.jetbrains.comVendor Advisory
https://blog.jetbrains.com/blog/2021/05/07/jetbrains-security-bulletin-q1-2021/Vendor Advisory

Timeline

Published: May 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31898?

In JetBrains WebStorm before 2021.1, HTTP requests were used instead of HTTPS.

How severe is CVE-2021-31898?

CVE-2021-31898 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31898?

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-2021-31898?

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

Scan your code now

Source: NVD / NIST