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Vulnerabilities

Vulnerability · CVE-2022-26138

Atlassian Questions For Confluence App Hard-coded Credentials Vulnerability

Published Jul 20, 2022 · catalog updated Jun 16, 2026 · Atlassian Confluence Server and Data Center

Patch now

CVE-2022-26138 is in the CISA known-exploited catalog, due Aug 19, 2022. Confirm Atlassian Confluence Server and Data Center against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
98.24%
Remediation
Remediation guidance
Affected products
cpe atlassian/questions for confluence · vendor Atlassian Confluence · vendor Atlassian Confluence Server and Data Center

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 attacker with knowledge of the hardcoded password could exploit this to log into Confluence and access all content accessible to users in the confluence-users group. This user account is created when installing versions 2.7.34, 2.7.35, and 3.0.2 of the app.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe atlassian/questions for confluence2.7.34
  • cpe atlassian/questions for confluence2.7.35
  • cpe atlassian/questions for confluence3.0.2
  • vendor Atlassian Confluenceversion unspecified
  • vendor Atlassian Confluence Server and Data Centerversion unspecified

How to fix CVE-2022-26138

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2022-26138 is in the CISA known-exploited catalog, due Aug 19, 2022. Confirm Atlassian Confluence Server and Data Center against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with atlassian/questions for confluence 2.7.34; atlassian/questions for confluence 2.7.35; atlassian/questions for confluence 3.0.2. Apply updates per vendor instructions.

What should an analyst verify?

CWE-798: Use of Hard-coded Credentials. EPSS 98.24%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 20, 2022 · Catalog

    Detected

    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 attacker with knowledge of the hardcoded password could exploit this to log into Confluence and access all content accessible to users in the confluence-users group.

  2. Jul 29, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Aug 19, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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 attacker with knowledge of the hardcoded password could exploit this to log into Confluence and access all content accessible to users in the confluence-users group.

Sources

  • CISA KEVConfirmed exploitationCVE-2022-26138

    Atlassian Questions For Confluence App has hard-coded credentials, exposing the username and password in plaintext. A remote unauthenticated attacker can use these credentials to log into Confluence and access all content accessible to users in the confluence-users group.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2022-26138

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-26138

    30-day exploitation probability 98.2%

    first.org
  • NIST NVDVulnerability recordCVE-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 attacker with knowledge of the hardcoded passw

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2022-26138

    Atlassian Questions For Confluence App has hard-coded credentials, exposing the username and password in plaintext. A remote unauthenticated attacker can use these credentials to log into Confluence and access all content accessible to users in the confluence-users group.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.