XSS in Atlassian Confluence Data Center
CVE-2024-21686
This High severity Stored XSS vulnerability was introduced in versions 7.13 of Confluence Data Center and Server. This Stored XSS vulnerability, with a CVSS Score of 7.3, allows an authenticated attacker to execute arbitrary HTML or JavaScript code on a victims browser which has high impact to confidentiality, high impact to integrity, no impact to availability, and requires 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 listed on this CVE 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 reported via our Bug Bounty program.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.009 (57.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.
Affected products
- Atlassian Confluence Data Center — versions 8.9.0, 8.8.0 to 8.8.1, 8.7.1 to 8.7.2
- Atlassian Confluence_data_center
- Atlassian Confluence Server — versions 8.5.0 to 8.5.8, 8.4.0 to 8.4.5, 8.3.0 to 8.3.4
- Atlassian Confluence_server
Weakness classification (CWE)
References
- security@atlassian.com (Vendor Advisory)
- security@atlassian.com (Issue Tracking)
Frequently asked questions
- What is CVE-2024-21686?
- CVE-2024-21686 is a high-severity vulnerability in Atlassian Confluence Data Center, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2024-07-16.
- How severe is CVE-2024-21686?
- High severity. CVSS v3 base score is 8.7 out of 10.