CVE-2024-21678: XSS

Published Feb 20, 2024
·
Updated

This High severity Stored XSS vulnerability was introduced in version 2.7.0 of Confluence Data Center. This Stored XSS vulnerability, with a CVSS Score of 8.5, allows an authenticated attacker to execute arbitrary HTML or JavaScript code on a victims browser which has high impact to confidentiality, low impact to integrity, no impact to availability, and requires no user interaction. Data Center Atlassian recommends that Confluence Data Center customers upgrade to the latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions: ||Affected versions||Fixed versions|| |from 8.7.0 to 8.7.1|8.8.0 recommended or 8.7.2| |from 8.6.0 to 8.6.1|8.8.0 recommended| |from 8.5.0 to 8.5.4 LTS|8.8.0 recommended or 8.5.5 LTS or 8.5.6 LTS| |from 8.4.0 to 8.4.5|8.8.0 recommended or 8.5.6 LTS| |from 8.3.0 to 8.3.4|8.8.0 recommended or 8.5.6 LTS| |from 8.2.0 to 8.2.3|8.8.0 recommended or 8.5.6 LTS| |from 8.1.0 to 8.1.4|8.8.0 recommended or 8.5.6 LTS| |from 8.0.0 to 8.0.4|8.8.0 recommended or 8.5.6 LTS| |from 7.20.0 to 7.20.3|8.8.0 recommended or 8.5.6 LTS| |from 7.19.0 to 7.19.17 LTS|8.8.0 recommended or 8.5.6 LTS or 7.19.18 LTS or 7.19.19 LTS| |from 7.18.0 to 7.18.3|8.8.0 recommended or 8.5.6 LTS or 7.19.19 LTS| |from 7.17.0 to 7.17.5|8.8.0 recommended or 8.5.6 LTS or 7.19.19 LTS| |Any earlier versions|8.8.0 recommended or 8.5.6 LTS or 7.19.19 LTS| Server Atlassian recommends that Confluence Server customers upgrade to the latest 8.5.x LTS version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions:   ||Affected versions||Fixed versions|| |from 8.5.0 to 8.5.4 LTS|8.5.5 LTS or 8.5.6 LTS recommended | |from 8.4.0 to 8.4.5|8.5.6 LTS recommended| |from 8.3.0 to 8.3.4|8.5.6 LTS recommended| |from 8.2.0 to 8.2.3|8.5.6 LTS recommended| |from 8.1.0 to 8.1.4|8.5.6 LTS recommended| |from 8.0.0 to 8.0.4|8.5.6 LTS recommended| |from 7.20.0 to 7.20.3|8.5.6 LTS recommended| |from 7.19.0 to 7.19.17 LTS|8.5.6 LTS recommended or 7.19.18 LTS or 7.19.19 LTS| |from 7.18.0 to 7.18.3|8.5.6 LTS recommended or 7.19.19 LTS| |from 7.17.0 to 7.17.5|8.5.6 LTS recommended or 7.19.19 LTS| |Any earlier versions|8.5.6 LTS recommended or 7.19.19 LTS| See the release notes ([https://confluence.atlassian.com/doc/confluence-release-notes-327.html]). You can download the latest version of Confluence Data Center from the download center ([https://www.atlassian.com/software/confluence/download-archives]). This vulnerability was reported via our Bug Bounty program.

Affected Software

7 affected components
Atlassian Confluence Data Center>=2.7.0, >=8.0.0<=8.5.4, >=8.6.0<=8.6.1, >=8.7.0<=8.7.1, >=7.17.0
Atlassian Confluence Server>=8.0.0<=8.5.4, >=8.1.0<=8.1.4, >=8.2.0<=8.2.3, >=8.3.0<=8.3.4, >=8.4.0<=8.4.5, >=8.5.0<=8.5.4, >=7.17.0
Atlassian Confluence Data Center<7.19.19
Atlassian Confluence Data Center>=7.20.0<8.5.5
Atlassian Confluence Data Center>=8.6.0<8.7.2
Atlassian Confluence Server<7.19.19
Atlassian Confluence Server>=7.20.0<8.5.5

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Atlassian Confluence Data Center to a version that resolves this vulnerability.

    Fixed in 8.5.6 LTS recommended or 7.19.19 LTS
  2. Upgrade

    Upgrade Atlassian Confluence Data Center to a version that resolves this vulnerability.

    Fixed in 8.8.0 recommended or 8.5.6 LTS or 7.19.19 LTS
  3. Upgrade

    Upgrade Atlassian Confluence Data Center to a version that resolves this vulnerability.

    Fixed in 8.8.0 recommended or 8.5.6 LTS or 7.19.18 LTS or 7.19.19 LTS
  4. Upgrade

    Upgrade Atlassian Confluence Data Center to a version that resolves this vulnerability.

    Fixed in 8.5.6 LTS recommended
  5. Upgrade

    Upgrade Atlassian Confluence Data Center to a version that resolves this vulnerability.

    Fixed in 8.8.0 recommended
  6. Upgrade

    Upgrade Atlassian Confluence Data Center to a version that resolves this vulnerability.

    Fixed in 8.5.5 LTS or 8.5.6 LTS recommended
  7. Upgrade

    Upgrade Atlassian Confluence Data Center to a version that resolves this vulnerability.

    Fixed in 8.8.0 recommended or 8.5.5 LTS or 8.5.6 LTS

Event History

Feb 20, 2024
CVE Published
via MITRE·06:00 PM
Data Sourced
via MITRE·06:00 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2024-21678?

CVE-2024-21678 has a high severity with a CVSS score of 8.5.

2

How do I fix CVE-2024-21678?

To fix CVE-2024-21678, update Confluence Data Center or Confluence Server to the latest version that is not affected.

3

Can CVE-2024-21678 be exploited remotely?

CVE-2024-21678 requires authentication, so it cannot be exploited remotely by unauthenticated users.

4

Which versions of Confluence are affected by CVE-2024-21678?

CVE-2024-21678 affects Atlassian Confluence Data Center starting from version 2.7.0 and Confluence Server from version 7.17.0.

5

What type of vulnerability is CVE-2024-21678?

CVE-2024-21678 is a Stored Cross-Site Scripting (XSS) vulnerability allowing attackers to execute HTML or JavaScript in victim browsers.

Company

Resources

Contact

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