What it is
CVE-2024-21683 is a vulnerability affecting Atlassian Confluence Data Center. This High severity RCE (Remote Code Execution) vulnerability was introduced in version 5.2 of Confluence Data Center and Server. This RCE...
Vulnerability report
Exploited in the wild
High confidence
Not in CISA KEV
CVE-2024-21683
Confluence Data Center Remote Code Execution
Atlassian / Confluence Data Center · 8.9.0
- Severity
- CVSS 8.8 · High
- Confidence
- High
- Exploit status
- Exploited in the wild
- EPSS
- 88.3%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.
Who is affected?
Atlassian / Confluence Data Center 8.9.0.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Confluence Data Center Remote Code Execution
This High severity RCE (Remote Code Execution) vulnerability was introduced in version 5.2 of Confluence Data Center and Server.
This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 7.2, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction.
Atlassian recommends that Confluence Data Center and Server customers upgrade to latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions. See the release notes https://confluence.atlassian.com/doc/confluence-release-notes-327.html
You can download the latest version of Confluence Data Center and Server from the download center https://www.atlassian.com/software/confluence/download-archives.
This vulnerability was found internally.
Vendor
Product
Affected
Status
Atlassian
Confluence Data Center
8.9.0
Affected
Atlassian
Confluence Data Center
8.8.0 to 8.8.1
Affected
Atlassian
Confluence Data Center
8.7.1 to 8.7.2
Affected
Atlassian
Confluence Data Center
8.6.0 to 8.6.2
Affected
Atlassian
Confluence Data Center
8.5.0 to 8.5.8
Affected
Atlassian
Confluence Data Center
8.4.0 to 8.4.5
Affected
Atlassian
Confluence Data Center
8.3.0 to 8.3.4
Affected
Atlassian
Confluence Data Center
8.2.0 to 8.2.3
Affected
Atlassian
Confluence Data Center
8.1.0 to 8.1.4
Affected
Atlassian
Confluence Data Center
8.0.0 to 8.0.4
Affected
Atlassian
Confluence Data Center
7.20.0 to 7.20.3
Affected
Atlassian
Confluence Data Center
7.19.0 to 7.19.21
Affected
Atlassian
Confluence Data Center
8.9.1 to 8.9.2
Unaffected
Atlassian
Confluence Data Center
8.5.9 to 8.5.10
Unaffected
Atlassian
Confluence Data Center
7.19.22 to 7.19.23
Unaffected
- Published
- 21 May 2024
- Exploitation Reported
- 21 May 2024
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
Tags
nuclei_scanner
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2024-21683
- confluence.atlassian.com/pages/viewpage.action confluence.atlassian.com · CVE Record https://confluence.atlassian.com/pages/viewpage.action?pageId=1409286211
- jira.atlassian.com/browse/CONFSERVER-95832 jira.atlassian.com · CVE Record https://jira.atlassian.com/browse/CONFSERVER-95832
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
The Shadowserver
Independent exploitation attestation added to the KEV Intelligence record.
Proof of concept available
GitHub
Public scanner or PoC coverage increases practical exploitability.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| The Shadowserver First | 2024-05-21 23:00 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
Metasploit template detected 28 Apr 2025.
View Metasploit template (opens in new tab)Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →Scanner Artifacts
Scanner and exploit-framework references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/atlassian_confluence_rce_cve_2024_21683.rb | 28 Apr 2025 |
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-21683.yaml | 25 Apr 2025 |
Risk and context
Severity, weaknesses, and research context
CVSS v3.1
8.8
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
88.3%
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
Atlassian Confluence Data Center and Server - Remote Code Execution
nuclei · Created Unknown
atlassian_confluence_rce_cve_2024_21683
metasploit · Created Unknown
Metasploit module for CVE-2024-21683
Timeline
From disclosure to observed exploitation
-
Metasploit module available
Exploit module available
-
Public PoC available
Public proof-of-concept code published
-
Nuclei template available
Scanner coverage available
-
CVE published
Vulnerability disclosed publicly
-
Added to KEV Intelligence KEV Feed
High-confidence, third-party attested exploitation
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2024-21683
Free JSON includes basic KEV fields{
"cve_id": "CVE-2024-21683",
"confidence": "High",
"cvss_score": 8.8,
"cvss_estimated": false,
"epss_score": 0.88267,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
Get alerts on high-impact exploitation
Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.