CVE intelligence and bounded remediation

CVE-2024-21677 — This High severity Path Traversal vulnerability was introduced in version 6.13.0 of Confluence Data Center

High CVSS 8.8

This High severity Path Traversal vulnerability was introduced in version 6.13.0 of Confluence Data Center. This Path Traversal vulnerability, with a CVSS Score of 8.3, allows an unauthenticated attacker to exploit an undefinable vulnerability which has high impact to confidentiality, high impact to integrity, high 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: Data Center Atlassian recommends that Confluence Data Center customers upgrade to the latest version and 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 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.

Severity
High
CVSS
8.8 (3.1)
Published
2024-03-19
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22

Affected products

  • atlassian / confluence_data_center
  • atlassian / confluence_server

Showing 2 representative product identities from 5 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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