5.4

CVE-2021-27733: jetbrains youtrack Cross-site Scripting

CVSS: 5.4v3.1MediumModified
Published 11-05-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-27733 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in jetbrains youtrack. EPSS estimates a 0.58% chance of exploitation in the next 30 days, higher than 46.8% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (NVD)
EPSS score
0.58%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-05-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

In JetBrains YouTrack before 2020.6.6441, stored XSS was possible via an issue attachment.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.58%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

0.00 pp

From 0.58% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.58%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Jetbrains1 product

1 vendor · 1 product

References

2 links