CVE-2023-22518
All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. This Improper Authorization vulnerability allows an unauthenticated attacker to reset Confluence and create a Confluence instance administrator account. Using this account, an attacker can then perform all administrative actions that are available to Confluence instance administrator leading to - but not limited to - full loss of confidentiality, integrity and availability. 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.
Actively exploited
- In the CISA exploited-vulnerabilities catalogue since Nov 7, 2023
- US federal agencies must remediate it by Nov 28, 2023 (BOD 22-01)
- First attack observed 1 day after disclosure
- Confirmed by sensors, not only by reports
- Used in ransomware campaigns
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Source: CISA KEV · Nov 1, 2026 Oct 31, 2026 Oct 31, 2026 Oct 30, 2026 Oct 29, 2026 Oct 29, 2026
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAffected products
| Vendors | Product | Versions |
|---|---|---|
| atlassian | confluence data center | < 7.19.16 |
| atlassian | confluence server | < 7.19.16 |
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This product uses the NVD API but is not endorsed or certified by the NVD.