On 2024-01-24, CISA added CVE-2023-22527 (Atlassian Confluence Data Center and Server) to its Known Exploited Vulnerabilities (KEV) catalog [2]. The vulnerability is listed in the catalog as "Atlassian Confluence Data Center and Server Template Injection Vulnerability" [2]. CISA requires applying mitigations in accordance with vendor instructions; see the full text below for specific requirements [2].
Backfill: this event became public on Jan 24, 2024 and we added it on Nov 10, 2026. It is not a new event.
CISA Adds Atlassian Confluence Data Center and Server Vulnerability CVE-2023-22527 to Known Exploited Vulnerabilities Catalog
1 min read
- Disclosed
- Jan 24, 2024
- Published
- Nov 10, 2026
- Last updated
- Nov 8, 2026
- CVSS basis
- Our assessment
- 100%, higher than 100% of CVEs
- Exploitation and patch status
- ExploitedKEV
- Attack vector
- Vulnerability status
- Actor type
- Motivation
On this page
30-second summary
What happened
Who is affected
Industries mainly affected: Government, Cross-industry
What to do nowOur advice
CISA requires applying mitigations in accordance with vendor instructions; see the full text for specific requirements [2].
Timeline
Technical details
CISA KEV Listing
On 2024-01-24, CISA added CVE-2023-22527 to the Known Exploited Vulnerabilities () catalog for Atlassian Confluence Data Center and Server [2].
Original Technical Description
Atlassian Confluence Data Center and Server contain an unauthenticated OGNL template injection vulnerability that can lead to . [2]
Official Requirements
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. [2]
Individual Vulnerability Record
The U.S. National Vulnerability Database (NVD) provides an independent vulnerability record and description for CVE-2023-22527 [1].
References
Official / primary3
- [1]
“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 ar”
- [2]
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