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CVE-2023-22515

98
FAUCET Score

CVE-2023-22515 is a critical authentication bypass vulnerability affecting Atlassian Confluence Data Center and Server instances, allowing unauthenticated attackers to create unauthorized administrator accounts. With a CVSS score of 9.8, it presents a severe risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. This vulnerability is actively exploited in the wild, including in ransomware campaigns, with public exploit modules and significant community discussion highlighting its immediate threat.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.0.0, < 8.3.3CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
>= 8.4.0, < 8.4.3CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
>= 8.5.0, < 8.5.2CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
>= 8.0.0, < 8.3.3CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
>= 8.4.0, < 8.4.3CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

10.0CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
99.16%
Probability of exploitation in next 30 days
EPSS Percentile
99.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Oct 5, 2023
Metasploit: Atlassian Confluence Unauthenticated Remote Code Execution · Oct 4, 2023
Nuclei: CVE-2023-22515 · Oct 10, 2023
This CVE's current EPSS score of 0.9916 is in the 100th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/175225/Atlassian-Confluence-Unauthenticated-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
confluence.atlassian.com / display/KB/FAQ+for+CVE-2023-22515
Vendor Advisory
confluence.atlassian.com / pages/viewpage.action
Vendor Advisory
jira.atlassian.com / browse/CONFSERVER-92475
Issue TrackingVendor Advisory