In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x…
Priority LOW 32CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6.0.11, an attacker could send a malicious email to an OTRS system. If a user with admin permissions opens it, it causes deletions of arbitrary files that the OTRS web server user has write access to.
Why it matters now
EPSS 0.01754 78th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
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 · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:otrs:open_ticket_request_system:*:*:*:*:*:*:*:* | 4.0.0 to before 4.0.32; 5.0.0 to before 5.0.30; 6.0.0 to before 6.0.11 | Vulnerable | OTRS AG |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
- cpe:2.3:a:otrs:open_ticket_request_system:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.0.32; 5.0.0 to before 5.0.30; 6.0.0 to before 6.0.11 Vulnerable ·OTRS AG
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-16587
- 2026-10-03 Alias added: GHSA-pr46-8w6c-393f
References
Patch 4
- https://github.com/OTRS/otrs/commit/d9db0c6a15caafda7689320ecf61777993c33711
- https://community.otrs.com/security-advisory-2018-04-security-update-for-otrs-framework/
- https://github.com/OTRS/otrs/commit/a4a1a01f84fac7ab032570ee50b660e2ebb15c01
- https://github.com/OTRS/otrs/commit/d8cae00b0f78c2a07bb10cedb817304139395843
Sources
- CVE-2018-16587 · CVE Program
- CVE-2018-16587 · NVD
- FIRST EPSS
- GHSA-pr46-8w6c-393f · GitHub Advisory Database · CC BY 4.0
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