Exploited
critical
10
CWE
74
Advisory Published
Updated

CVE-2023-22527: Atlassian Confluence Data Center and Server Template Injection Vulnerability

First published: Tue Jan 16 2024(Updated: )

A template injection vulnerability on older versions of Confluence Data Center and Server allows an unauthenticated attacker to achieve RCE on an affected instance. Customers using an affected version must take immediate action. Most recent supported versions of Confluence Data Center and Server are not affected by this vulnerability as it was ultimately mitigated during regular version updates. However, Atlassian recommends that customers take care to install the latest version to protect their instances from non-critical vulnerabilities outlined in Atlassian’s January Security Bulletin.

Credit: security@atlassian.com security@atlassian.com

Affected SoftwareAffected VersionHow to fix
Atlassian Confluence Server and Data Center
Atlassian Confluence Server/Data Center>=8.0.0<8.5.4
Atlassian Confluence Server/Data Center=8.7.0
Atlassian Confluence Server and Data Server>=8.0.0<8.5.4
Atlassian Confluence Server/Data Center=8
Atlassian Confluence Server and Data Server=8
Atlassian Confluence Server/Data Center=before December 5, 2023
Atlassian Confluence Server and Data Server=up to 8.4.5
>=8.0.0<8.5.4
=8.7.0
>=8.0.0<8.5.4

Remedy

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2023-22527?

    CVE-2023-22527 is classified as a critical vulnerability due to its potential for remote code execution by unauthenticated attackers.

  • How do I fix CVE-2023-22527?

    To fix CVE-2023-22527, upgrade to the latest supported versions of Atlassian Confluence Data Center or Server after patching.

  • Which versions of Atlassian Confluence are affected by CVE-2023-22527?

    CVE-2023-22527 affects Atlassian Confluence Data Center versions prior to December 5, 2023, and Confluence Server versions up to and including 8.4.5.

  • Can CVE-2023-22527 be exploited remotely?

    Yes, CVE-2023-22527 allows unauthenticated attackers to execute arbitrary code remotely on vulnerable instances.

  • What should I do if I am using an affected version of Confluence?

    If you are using an affected version of Confluence, you must take immediate action to update to a patched version to mitigate the vulnerability.

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