CVE-2024-21683

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 88.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-05-21 · updated 2026-06-17
Weakness: CWE-94

Description

This High severity RCE (Remote Code Execution) vulnerability was introduced in version 5.2 of Confluence Data Center and Server. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 7.2, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction. Atlassian recommends that Confluence Data Center and Server customers upgrade to latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions. See the release notes https://confluence.atlassian.com/doc/confluence-release-notes-327.html You can download the latest version of Confluence Data Center and Server from the download center https://www.atlassian.com/software/confluence/download-archives. This vulnerability was found internally.

Affected products

Atlassian Confluence Data Center: from 7.19.0 before 7.19.24; from 7.20.0 through 7.20.3; from 8.0.0 through 8.0.4; from 8.1.0 through 8.1.4; from 8.2.0 through 8.2.3; from 8.3.0 through 8.3.4 — fixed in 7.19.24, 8.5.11, 8.9.3
Atlassian Confluence Data Center: from 7.19.0 before 7.19.24; from 7.20.0 through 7.20.3; from 8.0.0 through 8.0.4; from 8.1.0 through 8.1.4; from 8.2.0 through 8.2.3; from 8.3.0 through 8.3.4 — fixed in 7.19.24, 8.5.11
Atlassian Crucible: from 4.8.0 before 4.8.15 — fixed in 4.8.15
Atlassian Fisheye: from 4.8.0 before 4.8.15 — fixed in 4.8.15
Atlassian Jira: from 9.4.0 before 9.4.21; from 9.12.0 before 9.12.8 — fixed in 9.12.8, 9.4.21
Atlassian Jira: from 9.4.0 before 9.4.21; from 9.12.0 before 9.12.8 — fixed in 9.12.8, 9.4.21
Atlassian Jira Service Management: from 5.4.0 before 5.4.21; from 5.12.0 before 5.12.8; from 5.15.2 before 5.16.0; 5.15.2 — fixed in 5.12.8, 5.16.0, 5.4.21

How to fix

Upgrade to a fixed version: Atlassian Confluence Data Center 7.19.24, 8.5.11, 8.9.3; Atlassian Confluence Data Center 7.19.24, 8.5.11; Atlassian Crucible 4.8.15; Atlassian Fisheye 4.8.15; Atlassian Jira 9.12.8, 9.4.21; Atlassian Jira 9.12.8, 9.4.21; Atlassian Jira Service Management 5.12.8, 5.16.0, 5.4.21. Check the vendor advisory for mitigations.

References

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