CVE-2022-26138

9.8

CVSS
Critical

PUBLISHED

The Atlassian Questions For Confluence app for Confluence Server and Data Center creates a Confluence user account in the confluence-users group...

Exploited in the wild Remote Low complexity No user interaction

Vendor: Atlassian
Product: Questions For Confluence
Published: Jul 20, 2022
EPSS: 94.3% · 100% pctl

Description

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.

cisa nuclei_scanner

CVSS scores

CVSS v3.1 9.8 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation status

Exploited in the wild

Recorded 2022-07-29 00:00:00 UTC · Source

SSVC decision points

Exploitation: active
Automatable: Yes
Technical impact: total

References

Known exploited vulnerability sources

Catalogues that list this CVE as a known exploited vulnerability.

Source	Added
CISA	Jul 29, 2022
The Shadowserver (via CIRCL)	May 31, 2026

Scanner integrations

Scanner	Reference	Detected
Nuclei	https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2022/CVE-2022-26138.yaml	Apr 25, 2025

Potential proof of concepts

These PoCs are unverified and could contain malware. Use at your own risk.

z92g/CVE-2022-26138

github · Created 2022-07-30 07:14:52 UTC · 15 stars

Confluence Hardcoded Password POC

Vulnmachines/Confluence-Question-CVE-2022-26138-

github · Created 2022-07-28 09:48:21 UTC · 3 stars

Atlassian Confluence Server and Data Center: CVE-2022-26138

alcaparra/CVE-2022-26138

github · Created 2022-07-21 09:28:06 UTC · 31 stars

Atlassian Questions Hardcoded Password (CVE-2022-26138)

Vulnerability detail