CVE-2018-16587

Name: CVE-2018-16587
Creator: NVD / NIST
Published: 2018-09-28T00:29:02.053+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.75%

Last modified Jun 17, 2026

CVE-2018-16587 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.75% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

1.75%

75.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Otrs	Open Ticket Request System	>= 4.0.0, < 4.0.32
Otrs	Open Ticket Request System	>= 5.0.0, < 5.0.30
Otrs	Open Ticket Request System	>= 6.0.0, < 6.0.11
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

https://community.otrs.com/security-advisory-2018-04-security-update-for-otrs-framework/Patch, Vendor Advisory
https://github.com/OTRS/otrs/commit/a4a1a01f84fac7ab032570ee50b660e2ebb15c01Patch
https://github.com/OTRS/otrs/commit/d8cae00b0f78c2a07bb10cedb817304139395843Patch
https://github.com/OTRS/otrs/commit/d9db0c6a15caafda7689320ecf61777993c33711Patch
https://lists.debian.org/debian-lts-announce/2018/09/msg00033.htmlMailing List, Third Party Advisory
https://www.debian.org/security/2018/dsa-4317Third Party Advisory
https://community.otrs.com/security-advisory-2018-04-security-update-for-otrs-framework/Patch, Vendor Advisory
https://github.com/OTRS/otrs/commit/a4a1a01f84fac7ab032570ee50b660e2ebb15c01Patch
https://github.com/OTRS/otrs/commit/d8cae00b0f78c2a07bb10cedb817304139395843Patch
https://github.com/OTRS/otrs/commit/d9db0c6a15caafda7689320ecf61777993c33711Patch
https://lists.debian.org/debian-lts-announce/2018/09/msg00033.htmlMailing List, Third Party Advisory
https://www.debian.org/security/2018/dsa-4317Third Party Advisory

Timeline

Published: Sep 28, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-16587?

How severe is CVE-2018-16587?

Severity scoring for CVE-2018-16587 is pending analysis. The EPSS model estimates a 1.75% probability of exploitation in the next 30 days.

How do I fix CVE-2018-16587?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-16587?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST