CVE-2020-4022: atlassian jira
Vulnerability summary
CVE-2020-4022 is a medium (CVSS 6.1) vulnerability in atlassian jira. EPSS estimates a 1.14% chance of exploitation in the next 30 days, higher than 66.5% of scored vulnerabilities.
Not severe (CVSS 6.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 01-07-2020PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
The attachment download resource in Atlassian Jira Server and Data Center before 8.5.5, and from 8.6.0 before 8.8.2, and from 8.9.0 before 8.9.1 allows remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability issue attachments with a mixed multipart content type.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.14%
Chance of exploitation in the next 30 days
Percentile
67%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.14% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Atlassian5 products
- jira< 8.5.5
- jira_data_center≥ 8.6.0, < 8.8.2 | ≥ 8.9.0, < 8.9.1
- jira_server≥ 8.6.0, < 8.8.2 | ≥ 8.9.0, < 8.9.1
- jira_server_and_data_center≥ unspecified, < 8.5.5 | ≥ 8.6.0, < unspecified | ≥ unspecified, < 8.8.2 | ≥ 8.9.0, < unspecified | ≥ unspecified, < 8.9.1
- jira software data center< 8.5.5
1 vendor · 5 products