In Terminalfour 8 through 8.4.1.1, the userLevel parameter in the user management…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-285.
Summary
In Terminalfour 8 through 8.4.1.1, the userLevel parameter in the user management function is not subject to proper server-side authorization checks. A Power User can intercept and modify this parameter to assign the Administrator role to other existing lower-privileged accounts, or invite a new lower-privileged account and escalate its privileges. While manipulating this request, the Power User can also change the target account's password, effectively taking full control of it.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:terminalfour:terminalfour:*:*:*:*:*:*:*:* | 8.0.0 to before 8.4.1.2 | Vulnerable | Terminalfour |
- cpe:2.3:a:terminalfour:terminalfour:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.4.1.2 Vulnerable ·Terminalfour
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-58386
- 2026-10-03 Alias added: GHSA-gcr9-vvrm-c46v
References
More Terminalfour vulnerabilities
- TI-2024-14807 A Server-Side Request Forgery (SSRF) vulnerability in Terminalfour before 8.3.19 allows… CVSS 3.1MEDIUM 6.5
- TI-2023-13856 In Terminalfour before 8.3.16, misconfigured LDAP users are able to login with an invalid password. CVSS 3.1MEDIUM 6.5
- TI-2022-12901 Terminalfour versions 8.3.7, 8.3.x versions prior to version 8.3.8 and r 8.2.x versions… CVSS 3.1MEDIUM 6.1
- TI-2024-14810 An issue was discovered in Terminalfour 7.4 through 7.4.0004 QP3 and 8 through 8.3.19… CVSS 3.1MEDIUM 6.3
- TI-2023-09421 The Logback component in Terminalfour before 8.3.14.1 allows OS administrators to obtain… CVSS 3.1MEDIUM 4.9
Sources
- CVE-2025-58386 · CVE Program
- CVE-2025-58386 · NVD
- FIRST EPSS
- GHSA-gcr9-vvrm-c46v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences