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CVE-2024-21683

88
FAUCET Score

CVE-2024-21683 is a high-severity Remote Code Execution (RCE) vulnerability affecting Atlassian Confluence Data Center and Server, as well as other Atlassian products like Crucible, Fisheye, Jira Data Center, Jira Server, and Jira Service Management. This vulnerability, with a CVSS score of 8.8, allows an authenticated attacker to execute arbitrary code with high impact to confidentiality, integrity, and availability, requiring no user interaction. While not currently in CISA's KEV catalog, exploit modules exist for Metasploit and Nuclei, and it has garnered significant community discussion and media coverage, indicating a high potential for exploitation. Atlassian recommends immediate upgrades to fixed versions or the latest release to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.19.0, < 7.19.24CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:lts:*:*:*
>= 7.20.0, <= 7.20.3CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
>= 8.0.0, <= 8.0.4CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
>= 8.1.0, <= 8.1.4CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
>= 8.2.0, <= 8.2.3CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
88.27%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: Atlassian Confluence Administrator Code Macro Remote Code Execution · May 21, 2024
Nuclei: CVE-2024-21683 · May 25, 2024
This CVE's current EPSS score of 0.8827 is in the 100th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

confluence.atlassian.com / pages/viewpage.action
Vendor Advisory
jira.atlassian.com / browse/CONFSERVER-95832
Issue Tracking