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TI-2024-14405 Aliases CVE-2024-21690GHSA-hm5h-rw9m-g27p

Cross-site scripting in Atlassian Confluence Data Center

Priority LOW 37CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

This High severity Reflected XSS and CSRF (Cross-Site Request Forgery) vulnerability was introduced in versions 7.19.0, 7.20.0, 8.0.0, 8.1.0, 8.2.0, 8.3.0, 8.4.0, 8.5.0, 8.6.0, 8.7.1, 8.8.0, and 8.9.0 of Confluence Data Center and Server. This Reflected XSS and CSRF (Cross-Site Request Forgery) vulnerability, with a CVSS Score of 7.1, allows an unauthenticated attacker to execute arbitrary HTML or JavaScript code on a victims browser and force a end user to execute unwanted actions on a web application in which they're currently authenticated which has high impact to confidentiality, low 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: * Confluence Data Center and Server 7.19: Upgrade to a release greater than or equal to 7.19.26 * Confluence Data Center and Server 8.5: Upgrade to a release greater than or equal to 8.5.14 * Confluence Data Center and Server 9.0: Upgrade to a release greater than or equal to 9.0.1 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00748 55th percentileScored 2026-11-07
Fix Fixed Confluence Data Center (Atlassian): 9.0.1 to 9.0.2, 8.5.14, 7.19.26Confluence Server (Atlassian): 8.5.14, 7.19.26

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AtlassianConfluence Data Center8.9.0 to 8.9.5; 8.8.0 to 8.8.1; 8.7.1 to 8.7.2; 8.6.0 to 8.6.2; 8.5.0 to 8.5.12; 8.4.0 to 8.4.5; 8.3.0 to 8.3.4; 8.2.0 to 8.2.3; 8.1.0 to 8.1.4; 8.0.0 to 8.0.4; 7.20.0 to 7.20.39.0.1 to 9.0.2, 8.5.14, 7.19.26Patch availableCNA
AtlassianConfluence Server8.5.0 to 8.5.12; 8.4.0 to 8.4.5; 8.3.0 to 8.3.4; 8.2.0 to 8.2.3; 8.1.0 to 8.1.4; 8.0.0 to 8.0.4; 7.20.0 to 7.20.38.5.14, 7.19.26Patch availableCNA
  • Confluence Data Center VendorAtlassian Affected 8.9.0 to 8.9.5; 8.8.0 to 8.8.1; 8.7.1 to 8.7.2; 8.6.0 to 8.6.2; 8.5.0 to 8.5.12; 8.4.0 to 8.4.5; 8.3.0 to 8.3.4; 8.2.0 to 8.2.3; 8.1.0 to 8.1.4; 8.0.0 to 8.0.4; 7.20.0 to 7.20.3 Fixed in 9.0.1 to 9.0.2, 8.5.14, 7.19.26 Patch available CNA
  • Confluence Server VendorAtlassian Affected 8.5.0 to 8.5.12; 8.4.0 to 8.4.5; 8.3.0 to 8.3.4; 8.2.0 to 8.2.3; 8.1.0 to 8.1.4; 8.0.0 to 8.0.4; 7.20.0 to 7.20.3 Fixed in 8.5.14, 7.19.26 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*7.19.0 – 7.19.25; 7.20.0 – 7.20.3; 8.0.0 – 8.0.4; 8.1.0 – 8.1.4; 8.2.0 – 8.2.3; 8.3.0 – 8.3.4; 8.4.0 – 8.4.5; 8.5.0 – 8.5.12; 8.6.0 – 8.6.2; 8.7.1 – 8.7.2; 8.8.0 – 8.8.1; 8.9.0 – 8.9.4VulnerableAtlassian
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*7.19.0 – 7.19.25; 7.20.0 – 7.20.3; 8.0.0 – 8.0.4; 8.1.0 – 8.1.4; 8.2.0 – 8.2.3; 8.3.0 – 8.3.4; 8.4.0 – 8.4.5; 8.5.0 – 8.5.12; 8.6.0 – 8.6.2; 8.7.1 – 8.7.2; 8.8.0 – 8.8.1; 8.9.0 – 8.9.4VulnerableAtlassian
  • cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:* Versions 7.19.0 – 7.19.25; 7.20.0 – 7.20.3; 8.0.0 – 8.0.4; 8.1.0 – 8.1.4; 8.2.0 – 8.2.3; 8.3.0 – 8.3.4; 8.4.0 – 8.4.5; 8.5.0 – 8.5.12; 8.6.0 – 8.6.2; 8.7.1 – 8.7.2; 8.8.0 – 8.8.1; 8.9.0 – 8.9.4 Vulnerable ·Atlassian
  • cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:* Versions 7.19.0 – 7.19.25; 7.20.0 – 7.20.3; 8.0.0 – 8.0.4; 8.1.0 – 8.1.4; 8.2.0 – 8.2.3; 8.3.0 – 8.3.4; 8.4.0 – 8.4.5; 8.5.0 – 8.5.12; 8.6.0 – 8.6.2; 8.7.1 – 8.7.2; 8.8.0 – 8.8.1; 8.9.0 – 8.9.4 Vulnerable ·Atlassian

Remediation

  • Fix · CNA Confluence Data Center (Atlassian) Fixed in 9.0.1 to 9.0.2, 8.5.14, 7.19.26
  • Fix · CNA Confluence Server (Atlassian) Fixed in 8.5.14, 7.19.26

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-21690
  2. 2026-10-03 Alias added: GHSA-hm5h-rw9m-g27p

References

Advisory 2

  • TI-2023-08765 Injection in Atlassian Confluence Data Center KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-08757 Improper input validation in Atlassian Confluence Data Center KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09596 Expression language injection in Atlassian Confluence Data Center KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-08036 Expression language injection in Atlassian Confluence Server KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-67904 Arbitrary file access in Atlassian Data Center products KEVCVSS 4.0CRITICAL 9.3
  • TI-2023-08759 Incorrect authorization in Atlassian Confluence Data Center KEVCVSS 3.1CRITICAL 9.8
See all 38 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences