VYPR
High severity8.5NVD Advisory· Published Feb 20, 2024· Updated Jun 17, 2026

CVE-2024-21678

CVE-2024-21678

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

5
  • cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*range: <7.19.19
    • (no CPE)range: from 8.7.0 to 8.7.1, from 8.6.0 to 8.6.1, from 8.5.0 to 8.5.4 LTS, from 8.4.0 to 8.4.5, from 8.3.0 to 8.3.4, from 8.2.0 to 8.2.3, from 8.1.0 to 8.1.4, from 8.0.0 to 8.0.4, from 7.20.0 to 7.20.3, from 7.19.0 to 7.19.17 LTS, from 7.18.0 to 7.18.3, from 7.17.0 to 7.17.5, Any earlier versions
    • (no CPE)range: >= 2.7.0
  • cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*range: <7.19.19
    • (no CPE)range: from 8.5.0 to 8.5.4 LTS, from 8.4.0 to 8.4.5, from 8.3.0 to 8.3.4, from 8.2.0 to 8.2.3, from 8.1.0 to 8.1.4, from 8.0.0 to 8.0.4, from 7.20.0 to 7.20.3, from 7.19.0 to 7.19.17 LTS, from 7.18.0 to 7.18.3, from 7.17.0 to 7.17.5, Any earlier versions

Patches

Vulnerability mechanics

References

2

News mentions

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