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CVE-2020-4022

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…

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.

Timeline

  1. ID reserved

    By atlassian

  2. · 6 months later

    Published

  3. · 4 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2020-4022, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1Medium6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (exploitation in 30 days)
1.1% · top 33% of all CVEs (12 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.

Affected products

  • Atlassian · Jira Server and Data Center

    • affected unspecified – < 8.5.5
    • affected 8.6.0 – < unspecified
    • affected unspecified – < 8.8.2
    • affected 8.9.0 – < unspecified
    • affected unspecified – < 8.9.1

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .