CVEs / CVE-2023-22527
CVE-2023-22527: Atlassian Confluence Data Center and Server Template Injection Vulnerability
- Known exploited in the CISA KEV catalog since 24 Jan 2024
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 99.9% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Atlassian Confluence Data Center and Server contain an unauthenticated OGNL template injection vulnerability that can lead to remote code execution.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Atlassian Confluence Data Center | >= 8.0.0 | — |
| Atlassian Confluence Data Center | >= 8.1.0 | — |
| Atlassian Confluence Data Center | >= 8.2.0 | — |
| Atlassian Confluence Data Center | >= 8.3.0 | — |
| Atlassian Confluence Data Center | >= 8.4.0 | — |
| Atlassian Confluence Data Center | >= 8.5.0 | — |
| Atlassian Confluence Data Center | >= 8.5.1 | — |
| Atlassian Confluence Data Center | >= 8.5.2 | — |
| Atlassian Confluence Data Center | >= 8.5.3 | — |
| Atlassian Confluence Server | >= 8.0.0 | — |
| Atlassian Confluence Server | >= 8.1.0 | — |
| Atlassian Confluence Server | >= 8.2.0 | — |
| Atlassian Confluence Server | >= 8.3.0 | — |
| Atlassian Confluence Server | >= 8.4.0 | — |
| Atlassian Confluence Server | >= 8.5.0 | — |
| Atlassian Confluence Server | >= 8.5.1 | — |
| Atlassian Confluence Server | >= 8.5.2 | — |
| Atlassian Confluence Server | >= 8.5.3 | — |
| atlassian confluence_data_center | from 8.0.0, before 8.5.4 | 8.5.4 |
| atlassian confluence_server | from 8.0.0, before 8.5.4 | 8.5.4 |
Exploitation
| In CISA KEV since | 24 Jan 2024 |
|---|---|
| Due date for US federal agencies | 14 Feb 2024 |
| Used in ransomware campaigns | Known |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-74 |
References
- CVE-2023-22527 on NVD
- CVE-2023-22527 in the CISA KEV catalog
- https://confluence.atlassian.com/security/cve-2023-22527-rce-remote-code-execution-vulnerability-in-confluence-data-center-and-confluence-server-1333990257.html (cited by CISA)
- http://packetstormsecurity.com/files/176789/Atlassian-Confluence-SSTI-Injection.html Exploit, Third Party Advisory, VDB Entry
- https://confluence.atlassian.com/pages/viewpage.action?pageId=1333335615 Vendor Advisory
- https://jira.atlassian.com/browse/CONFSERVER-93833 Issue Tracking, Vendor Advisory
- https://www.vicarius.io/vsociety/posts/pwning-confluence-via-ognl-injection-for-fun-and-learning-cve-2023-22527 Exploit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-22527 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.