Actively exploited · Published Jul 20, 2022 · Assigned by atlassian
CVE-2022-26138
Critical 9.8 Exploited
In plain English
A critical-severity hard-coded credentials in Questions For Confluence from Atlassian. Attackers are actively exploiting it in the wild (listed by CISA on July 29, 2022). The chance it is exploited in the next 30 days is estimated at 98.2% (higher than 99.9% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code. Apply updates per vendor instructions.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Aug 19, 2022.
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Atlassian | Questions For Confluence | 2.7.342.7.353.0.2 |
Weakness: CWE-798 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H