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

> CVE-2023-22527: Atlassian Confluence Data Center and Server Template Injection Vulnerability. CVSS 10.0 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2023-22527
Last updated: 2025-10-21T23:05:28Z

- Published: 2024-01-16 05:00 UTC · Updated: 2025-10-21 23:05 UTC · Assigner: atlassian
- CVSS: 10.0 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS: 100.0%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2024-01-24, federal due date 2024-02-14, ransomware use: Known

## 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.

## CISA required action

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

## Affected vendors and products

- atlassian: confluence\_data\_center
- atlassian: confluence\_server
- Atlassian: Confluence Data Center
- Atlassian: Confluence Server

## Tracked companies

- [Confluence](https://rewindex.com/company/confluence.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2023-22527)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2023-22527)
- [http://packetstormsecurity.com/files/176789/Atlassian-Confluence-SSTI-Injection.html](http://packetstormsecurity.com/files/176789/Atlassian-Confluence-SSTI-Injection.html)
- [https://confluence.atlassian.com/pages/viewpage.action?pageId=1333335615](https://confluence.atlassian.com/pages/viewpage.action?pageId=1333335615)
- [https://jira.atlassian.com/browse/CONFSERVER-93833](https://jira.atlassian.com/browse/CONFSERVER-93833)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2023-22527 · Markdown: https://rewindex.com/cve/CVE-2023-22527.md · JSON: https://rewindex.com/api/v1/cves/CVE-2023-22527 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:16:53.846Z