Confluence DC 8.7.x Stored XSS Authenticated Attack
CVE-2024-21678 Published on February 20, 2024
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 code on a victims browser which has high impact to confidentiality, low impact to integrity, no impact to availability, and requires no user interaction. Data Center Atlassian recommends that Confluence Data Center customers upgrade to the latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions: ||Affected versions||Fixed versions|| |from 8.7.0 to 8.7.1|8.8.0 recommended or 8.7.2| |from 8.6.0 to 8.6.1|8.8.0 recommended| |from 8.5.0 to 8.5.4 LTS|8.8.0 recommended or 8.5.5 LTS or 8.5.6 LTS| |from 8.4.0 to 8.4.5|8.8.0 recommended or 8.5.6 LTS| |from 8.3.0 to 8.3.4|8.8.0 recommended or 8.5.6 LTS| |from 8.2.0 to 8.2.3|8.8.0 recommended or 8.5.6 LTS| |from 8.1.0 to 8.1.4|8.8.0 recommended or 8.5.6 LTS| |from 8.0.0 to 8.0.4|8.8.0 recommended or 8.5.6 LTS| |from 7.20.0 to 7.20.3|8.8.0 recommended or 8.5.6 LTS| |from 7.19.0 to 7.19.17 LTS|8.8.0 recommended or 8.5.6 LTS or 7.19.18 LTS or 7.19.19 LTS| |from 7.18.0 to 7.18.3|8.8.0 recommended or 8.5.6 LTS or 7.19.19 LTS| |from 7.17.0 to 7.17.5|8.8.0 recommended or 8.5.6 LTS or 7.19.19 LTS| |Any earlier versions|8.8.0 recommended or 8.5.6 LTS or 7.19.19 LTS| Server Atlassian recommends that Confluence Server customers upgrade to the latest 8.5.x LTS version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions: ||Affected versions||Fixed versions|| |from 8.5.0 to 8.5.4 LTS|8.5.5 LTS or 8.5.6 LTS recommended | |from 8.4.0 to 8.4.5|8.5.6 LTS recommended| |from 8.3.0 to 8.3.4|8.5.6 LTS recommended| |from 8.2.0 to 8.2.3|8.5.6 LTS recommended| |from 8.1.0 to 8.1.4|8.5.6 LTS recommended| |from 8.0.0 to 8.0.4|8.5.6 LTS recommended| |from 7.20.0 to 7.20.3|8.5.6 LTS recommended| |from 7.19.0 to 7.19.17 LTS|8.5.6 LTS recommended or 7.19.18 LTS or 7.19.19 LTS| |from 7.18.0 to 7.18.3|8.5.6 LTS recommended or 7.19.19 LTS| |from 7.17.0 to 7.17.5|8.5.6 LTS recommended or 7.19.19 LTS| |Any earlier versions|8.5.6 LTS recommended or 7.19.19 LTS| See the release notes ([https://confluence.atlassian.com/doc/confluence-release-notes-327.html]). You can download the latest version of Confluence Data Center from the download center ([https://www.atlassian.com/software/confluence/download-archives]). This vulnerability was reported via our Bug Bounty program.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2024-21678 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2024-21678
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2024-21678 are published in Atlassian Confluence:
Affected Versions
Atlassian Confluence Data Center:- Version < 2.7.0 is unaffected.
- Version >= 2.7.0 is affected.
- Version >= 7.13.0 is affected.
- Version >= 7.19.0 is affected.
- Version >= 7.20.0 is affected.
- Version >= 8.0.0 is affected.
- Version >= 8.1.0 is affected.
- Version >= 8.2.0 is affected.
- Version >= 8.3.0 is affected.
- Version >= 8.4.0 is affected.
- Version >= 8.5.0 is affected.
- Version >= 8.6.0 is affected.
- Version >= 8.7.1 is affected.
- Version >= 7.19.18 is unaffected.
- Version >= 8.5.5 is unaffected.
- Version >= 8.7.2 is unaffected.
- Version >= 8.8.0 is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.