CVE-2024-21686

High

Description

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.

SeverityHigh
CVSS8.7
Exploit probability—
ProductAtlassian Confluence Data Center
PublishedJul 16, 2024
First seenJul 16, 2024

How to fix

Update
  • atlassian confluence_data_center7.19.22, 8.5.9, 8.9.1 or later
  • atlassian confluence_server7.19.22, 8.5.9 or later

Affected products

ProductAffected versionsFixed in
atlassian confluence_data_centerv < 7.19.22, 7.20.0 ≤ v < 8.5.9, 8.6.0 ≤ v < 8.9.17.19.22, 8.5.9, 8.9.1
atlassian confluence_serverv < 7.19.22, 7.20.0 ≤ v < 8.5.97.19.22, 8.5.9

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CVE-2024-21686 · Atlassian Confluence Data Center · Dark Radar