BLACKOUT MAP

Atlassian · Confluence

CVE-2022-26138

Atlassian Questions For Confluence App Hard-coded Credentials Vulnerability

Exploited in attacks Critical 9.8 Attack chance: 98%
Share

What it is

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: 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.

What to do

Apply updates per vendor instructions.

Deadline for US federal agencies: August 19, 2022

Added to the CISA list
July 29, 2022
Published
July 20, 2022
Severity
Critical 9.8 CVSS 3.1
Chance of attacks in the next 30 days (EPSS)
98% in the top 0.1% of all known vulnerabilities
Weakness
CWE-798
More details
NVD · CVE.org · CISA
All references (2)

More exploited flaws from Atlassian

AddedVulnerabilityProductSeverityAttack chance
Oct 15, 2026Files or Directories Accessible to External PartiesCVE-2026-21589Multiple ProductsCritical 9.399.5%
Nov 12, 2024Path TraversalCVE-2021-26086Jira Server and Data CenterMedium 5.3>99.9%
Jan 24, 2024Template InjectionCVE-2023-22527used by ransomwareConfluence Data Center and ServerCritical 10.0>99.9%
Nov 7, 2023Improper AuthorizationCVE-2023-22518used by ransomwareConfluence Data Center and ServerCritical 10.0>99.9%
Oct 5, 2023Broken Access ControlCVE-2023-22515used by ransomwareConfluence Data Center and ServerCritical 10.099.2%
Sep 30, 2022Command InjectionCVE-2022-36804Bitbucket Server and Data CenterHigh 8.899.1%
Jun 2, 2022Confluence Server and Data Center Remote Code ExecutionCVE-2022-26134used by ransomwareConfluence Server/Data CenterCritical 9.8>99.9%
Mar 28, 2022Pre-Authorization Arbitrary File ReadCVE-2021-26085used by ransomwareConfluence ServerMedium 5.399.9%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.