CVE-2024-21686

moderate-risk
Published 2024-07-16

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.

Do I need to act?

~
3.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.7/10 High
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Atlassian

References (4)

Vendor Advisory https://confluence.atlassian.com/pages/viewpage.action?pageId=1417150917
Issue Tracking https://jira.atlassian.com/browse/CONFSERVER-96134
Vendor Advisory https://confluence.atlassian.com/pages/viewpage.action?pageId=1417150917
Issue Tracking https://jira.atlassian.com/browse/CONFSERVER-96134
44
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 7/34 · Low
Exposure 7/34 · Low