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CVE-2023-22518

98
FAUCET Score

CVE-2023-22518 is a critical Improper Authorization vulnerability affecting all versions of Atlassian Confluence Data Center and Server, allowing unauthenticated attackers to reset Confluence and create an administrator account. This vulnerability carries a CVSS score of 9.8 (CRITICAL) due to its network-based attack vector, low complexity, and complete loss of confidentiality, integrity, and availability. It is actively exploited, with known ransomware campaigns leveraging it, and exploit modules are publicly available, generating significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0, < 7.19.16CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
>= 7.20.0, < 8.3.4CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
>= 8.4.0, < 8.4.4CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
>= 8.5.0, < 8.5.3CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
8.6.0CPE matchmatch criteria
cpe:2.3:a:atlassian:confluence_data_center:8.6.0:*:*:*:*:*:*:*

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
100.00%
Probability of exploitation in next 30 days
EPSS Percentile
100.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Nov 7, 2023
Metasploit: Atlassian Confluence Unauth JSON setup-restore Improper Authorization leading to RCE (CVE-2023-22518) · Oct 31, 2023
Nuclei: CVE-2023-22518 · Nov 3, 2023
This CVE's current EPSS score of 1.0000 is in the 100th percentile among its peer group of 36,862 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/176264/Atlassian-Confluence-Improper-Authorization-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
confluence.atlassian.com / pages/viewpage.action
Issue TrackingMitigationVendor Advisory
jira.atlassian.com / browse/CONFSERVER-93142
Issue TrackingMitigationVendor Advisory