Vulnerability Report

CVE-2022-26138

CISA KEV Active

Title: Hardcoded Credentials in Questions For Confluence App

Authentication Bypass

Proof Of Concept

PoC Available for CVE-2022-26138

CWE Category CWE-798
Published Date Jul 20, 2022
Modified Date Jan 14, 2026
Exploit Status Available
Score 9.8 CVSS v3.1
Exploit Probability (EPSS)
98.17%

Vulnerability Summary

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 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.

Impacted Vendors

A
atlassian 3

Reference Links

https://confluence.atlassian.com/doc/confluence-security-advisory-2022-07-20-1142446709.html https://jira.atlassian.com/browse/CONFSERVER-79483 https://confluence.atlassian.com/doc/confluence-security-advisory-2022-07-20-1142446709.html https://jira.atlassian.com/browse/CONFSERVER-79483 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26138
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2022-26138 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/alcaparra/CVE-2022-26138
View Code
GitHub https://github.com/z92g/CVE-2022-26138
View Code
GitHub https://github.com/Vulnmachines/Confluence-Question-CVE-2022-26138-
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.