# CVE-2018-17883: Cross-site scripting in n/a

> An attacker can execute JavaScript in the context of OTRS by tricking a logged-in agent into clicking a malicious link in an email.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 15 Apr 2023
- **Updated:** 6 Feb 2025
- **Also known as:** DEBIAN-CVE-2018-17883, GHSA-2cjf-4qjm-hh7v, UBUNTU-CVE-2018-17883

## What is CVE-2018-17883?

CVE-2018-17883 is a medium-severity cross-site scripting vulnerability in Otrs Otrs, published on 15 Apr 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

An issue was discovered in Open Ticket Request System (OTRS) 6.0.x before 6.0.12. An attacker could send an e-mail message with a malicious link to an OTRS system or an agent. If a logged-in agent opens this link, it could cause the execution of JavaScript in the context of OTRS.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2018-17883?

It affects 1 product.


Products: Otrs Otrs.

## How do I fix CVE-2018-17883?

Upgrade to a fixed version.

## Is CVE-2018-17883 being exploited?

There is no known exploitation of CVE-2018-17883 in the wild and no public exploit code.

## Other vulnerabilities in Otrs Otrs

- [CVE-2026-48188](https://insights.sbomify.com/CVE-2026-48188/): SQL Injection via MySQL Quote Method (critical 9.1)
- [CVE-2013-4717](https://insights.sbomify.com/CVE-2013-4717/): SQL injection in n/a (high 8.8)
- [CVE-2017-14635](https://insights.sbomify.com/CVE-2017-14635/): Code injection in n/a (high 8.8)
- [CVE-2023-5422](https://insights.sbomify.com/CVE-2023-5422/): SSL Certificates are not checked for E-Mail Handling (high 8.7)
- [CVE-2023-6254](https://insights.sbomify.com/CVE-2023-6254/): Password is send back to client (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-17883 and fix it if it is affected.

What it is: CVE-2018-17883 is a medium-severity cross-site scripting vulnerability in Otrs Otrs, published on 15 Apr 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-17883 in the wild and no public exploit code.

Affected product: Otrs Otrs. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2018-17883/ (Markdown: https://insights.sbomify.com/CVE-2018-17883/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-17883
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-17883
- OSV: https://osv.dev/vulnerability/CVE-2018-17883

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-17883/
Summaries are generated and may contain mistakes; the official description above is the record.