Vulnerability in Atlassian Confluence_data_center
CVE-2022-26138
The Atlassian Questions For Confluence app for Confluence Server and Data Center creates a Confluence user account in the confluence-users group with the username disabledsystemuser and a hardcoded password. A remote, unauthenticated attac…
EPSS: 0.982 (99.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Atlassian Confluence_data_center
- Atlassian Confluence_server
- Atlassian Questions For Confluence — versions 2.7.34, 2.7.35, 3.0.2
- Atlassian Questions_for_confluence — versions 2.7.34, 2.7.35, 3.0.2
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- security@atlassian.com (Patch, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- security@atlassian.com (x_refsource_MISC, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2022-26138?
- CVE-2022-26138 is a critical-severity vulnerability in Atlassian Confluence_data_center, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2022-07-20.
- How severe is CVE-2022-26138?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-26138 known to be exploited?
- Yes. CVE-2022-26138 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-07-29), indicating it is being actively exploited. 31 public proof-of-concept repositories are indexed.