CVE-2018-16586 json
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…
published 2018-09-28 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-8393
- cvss
- 4.3
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
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 logged in user opens it, the email could cause the browser to load external image or CSS resources.
Patch / fix
- otrs open_ticket_request_system 4.0.32, 5.0.30, 6.0.11
- otrs2 Debian 11 6.0.11-1
debian advisories DEBIAN-CVE-2018-16586
Exploit prediction
1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
References
-
github.com
/OTRS/otrs/commit/baa92df09145b8ae2702a3a0e85d8ba55ec96302
patch
-
github.com
/OTRS/otrs/commit/a808859a75c59ae3b7568f5cc4708c53462aa4c7
patch
-
github.com
/OTRS/otrs/commit/09e80c7752b0d9080688e4597c7495dd109e0963
patch
-
community.otrs.com
/security-advisory-2018-05-security-update-for-otrs-framework/
patch, vendor-advisory
-
debian.org
/security/2018/dsa-4317
vendor-advisory, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2018/09/msg00033.html
mailing-list, third-party-advisory
Sources
- CVE List CVE-2018-16586
- NVD CVE-2018-16586
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.