CVE-2023-22527
Atlassian Confluence Data Center, Atlassian Confluence Server
Published 16 Jan 2024 · updated 17 Jun 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 24 Jan 2024, with a remediation deadline of 14 Feb 2024 for US federal agencies. It has been used in ransomware campaigns.
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description
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.
References
- packetstormsecurity.com/files/176789/Atlassian-Confluence-SSTI-Injection.html · Exploit, Third Party Advisory, VDB Entry
- confluence.atlassian.com/pages/viewpage.action?pageId=1333335615 · Vendor Advisory
- jira.atlassian.com/browse/CONFSERVER-93833 · Issue Tracking, Vendor Advisory
- www.vicarius.io/vsociety/posts/pwning-confluence-via-ognl-injection-for-fun-and-learning-cve-2023-22527 · Exploit
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-22527 · US Government Resource