What is CVE-2024-21678?

CVE-2024-21678 is a high-severity vulnerability in Atlassian Confluence Data Center, classified under Cross-site Scripting. CVSS score: 8.5/10. Published 2024-02-20.

How severe is CVE-2024-21678?

High severity. CVSS v3 base score is 8.5 out of 10.

XSS in Atlassian Confluence Data Center

CVE-2024-21678

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 cod…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (37.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.

Affected products

Atlassian Confluence Data Center — versions < 2.7.0, >= 2.7.0, >= 7.13.0
Atlassian Confluence_data_center
Atlassian Confluence_server

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@atlassian.com (Vendor Advisory)
security@atlassian.com (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2024-21678?: CVE-2024-21678 is a high-severity vulnerability in Atlassian Confluence Data Center, classified under Cross-site Scripting. CVSS score: 8.5/10. Published 2024-02-20.
How severe is CVE-2024-21678?: High severity. CVSS v3 base score is 8.5 out of 10.