CVE-2023-22527
Atlassian Confluence Data Center and Server Template Injection Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA notes
https://confluence.atlassian.com/security/cve-2023-22527-rce-remote-code-execution-vulnerability-in-confluence-data-center-and-confluence-server-1333990257.html; https://nvd.nist.gov/vuln/detail/CVE-2023-22527
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.
Severity
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HExploitation Context
as of October 17, 2026- CISA added CVE-2023-22527 to the KEV catalog 8 days after its CVE record was published. The median for entries added in 2024 is 21.5 days.
- It is one of 13 Atlassian entries in the CISA KEV catalog, and one of 2 added in 2024.
- Its current EPSS score (100.0%) is higher than that of 96% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Atlassian | Atlassian Confluence Data Center | < 8.0.0 (unaffected) >= 8.0.0 >= 8.1.0 >= 8.2.0 >= 8.3.0 >= 8.4.0 >= 8.5.0 >= 8.5.1 >= 8.5.2 >= 8.5.3 >= 8.5.4 (unaffected) >= 8.6.0 (unaffected) >= 8.7.1 (unaffected) |
| Atlassian | Atlassian Confluence Server | < 8.0.0 (unaffected) >= 8.0.0 >= 8.1.0 >= 8.2.0 >= 8.3.0 >= 8.4.0 >= 8.5.0 >= 8.5.1 >= 8.5.2 >= 8.5.3 >= 8.5.4 (unaffected) >= 8.6.0 (unaffected) |
References
4 Links- https://confluence.atlassian.com/pages/viewpage.action?pageId=1333335615
- https://jira.atlassian.com/browse/CONFSERVER-93833
- http://packetstormsecurity.com/files/176789/Atlassian-Confluence-SSTI-Injection.html
- https://www.vicarius.io/vsociety/posts/pwning-confluence-via-ognl-injection-for-fun-and-learning-cve-2023-22527
Record Details
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