CVE-2022-26138
Atlassian — Atlassian Questions For Confluence App Hard-coded Credentials Vulnerability
Atlassian · CWE-798 — Hard-coded credentials · in CISA KEV since 2022-07-29
EVRS 87 of 100 Immediate
Out-of-Band / Urgent Remediation
Rank 273 of 2,960 tracked
Why it scores 87
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and an EPSS probability of 0.982.
- CISA KEVApplied
- RansomwareDid not apply
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
No fixed version identified yetCISA required action
- confluence.atlassian.com/…/questions-for-confluence-security-advisory-2022-07-20-1142446709.html
- nvd.nist.gov/…/CVE-2022-26138
Affected versions
- questions for confluence
2.7.342.7.353.0.2 - confluence data center
- confluence server
Remediation
Apply updates per vendor instructions.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 9.8 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.982 (99.92nd pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Unknown or none | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2022-08-19 · KEV since 2022 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | None known | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by atlassian. | Listed | ENISA EUVD |
Description
NVDThe 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.
What CISA says to do