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AEGLIX vulnerability intelligence

CVE-2023-22515

CRITICAL · CVSS 9.8 · Analyzed

Published: 2023-10-04 · Updated: 2026-06-17 · Source: NVD

Vulnerability overview

Atlassian has been made aware of an issue reported by a handful of customers where external attackers may have exploited a previously unknown vulnerability in publicly accessible Confluence Data Center and Server instances to create unauthorized Confluence administrator accounts and access Confluence instances. Atlassian Cloud sites are not affected by this vulnerability. If your Confluence site is accessed via an atlassian.net domain, it is hosted by Atlassian and is not vulnerable to this issue.

Severity and scoring

CVSS score
9.8 · CRITICAL
CVSS version
3.1
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-20, NVD-CWE-noinfo

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Listed in CISA’s Known Exploited Vulnerabilities catalog.

Affected product
Atlassian · Confluence Data Center and Server
Added to catalog
2023-10-05
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.
CISA remediation due date
2023-10-13

CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

  • cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*

    From (inclusive): 8.0.0

    Before (exclusive): 8.3.3

  • cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*

    From (inclusive): 8.4.0

    Before (exclusive): 8.4.3

  • cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*

    From (inclusive): 8.5.0

    Before (exclusive): 8.5.2

  • cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*

    From (inclusive): 8.0.0

    Before (exclusive): 8.3.3

  • cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*

    From (inclusive): 8.4.0

    Before (exclusive): 8.4.3

  • cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*

    From (inclusive): 8.5.0

    Before (exclusive): 8.5.2

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

Explore the CISA catalog ↗

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