What is CVE-2021-31903?

CVE-2021-31903 is a medium-severity vulnerability in Jetbrains Youtrack, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-05-11.

How severe is CVE-2021-31903?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Jetbrains Youtrack

CVE-2021-31903

In JetBrains YouTrack before 2021.1.9819, a pull request's title was sanitized insufficiently, leading to XSS.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (52.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Jetbrains Youtrack
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-31903?: CVE-2021-31903 is a medium-severity vulnerability in Jetbrains Youtrack, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-05-11.
How severe is CVE-2021-31903?: Medium severity. CVSS v3 base score is 6.1 out of 10.