CVE-2021-39111

MEDIUM

6.1

CVSS Score

Published: August 30, 2021 at 06:30 AM UTC

Updated: June 17, 2026 at 04:03 AM UTC

4 products affected across 1 vendorJira ServerJiraJira Data Center

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Severity

MEDIUM6.1

Exploit prediction

EPSS 1%

SSVC

No known exploit

Description

The Editor plugin in Atlassian Jira Server and Data Center before version 8.5.18, from 8.6.0 before 8.13.10, and from version 8.14.0 before 8.18.2 allows remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability in the handling of supplied content such as from a PDF when pasted into a field such as the description field.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Data Center · Atlassianatlassian-app

95%

v < 8.5.18

Affected range stops below 8.5.18, so it looks safe — our inference, not a vendor statement

Jira · Atlassianatlassian-app

95%

v < 8.5.18

Affected range stops below 8.5.18, so it looks safe — our inference, not a vendor statement

Jira Data Center · Atlassianatlassian-app

95%

v ≥ 8.14.0v ≥ 8.6.0v < 8.13.10v < 8.18.2v < 8.5.188.14.0 ≤ v < 8.18.28.6.0 ≤ v < 8.13.108.14.0 8.6.0

Affected range stops below 8.13.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.18.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.5.18, so it looks safe — our inference, not a vendor statement

Jira Server · Atlassianatlassian-app

95%

v ≥ 8.14.0v ≥ 8.6.0v < 8.13.10v < 8.18.2v < 8.5.188.14.0 ≤ v < 8.18.28.6.0 ≤ v < 8.13.108.14.0 8.6.0

Affected range stops below 8.13.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.18.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.5.18, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://jira.atlassian.com/browse/JRASERVER-72716

References (1)

x_refsource_MISCIssue TrackingVendor Advisory

Source: [email protected]

https://jira.atlassian.com/browse/JRASERVER-72716

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: LOW
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-79

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