# CVE-2019-14748: Cross-site scripting in n/a

> Attackers can upload malicious HTML files to trigger persistent XSS, enabling cookie theft or malicious actions against other users.

- **Severity:** Medium 5.4 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 7 Aug 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-v3wf-9r8f-h42x

## What is CVE-2019-14748?

CVE-2019-14748 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 Aug 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

An issue was discovered in osTicket before 1.10.7 and 1.12.x before 1.12.1. The Ticket creation form allows users to upload files along with queries. It was found that the file-upload functionality has fewer (or no) mitigations implemented for file content checks; also, the output is not handled properly, causing persistent XSS that leads to cookie stealing or malicious actions. For example, a non-agent user can upload a .html file, and Content-Disposition will be set to inline instead of attachment.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2019-14748?

It affects 1 product.


Products: Enhancesoft Osticket.

## How do I fix CVE-2019-14748?

No fix has been published for CVE-2019-14748 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-14748 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-14748 exists.

Public exploit code:

- osTicket 1.12 - Persistent Cross-Site Scripting via File Upload (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2021-42235](https://insights.sbomify.com/CVE-2021-42235/): SQL injection in n/a (critical 9.8)
- [CVE-2020-24881](https://insights.sbomify.com/CVE-2020-24881/): Server-side request forgery in n/a (critical 9.8)
- [CVE-2022-31888](https://insights.sbomify.com/CVE-2022-31888/): Other in n/a (high 8.8)
- [CVE-2019-14749](https://insights.sbomify.com/CVE-2019-14749/): Other in n/a (high 8.8)
- [CVE-2026-22200](https://insights.sbomify.com/CVE-2026-22200/): osTicket (1.18.x < 1.18.3, 1.17.x < 1.17.7) PDF Export Arbitrary File Read (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-14748 and fix it if it is affected.

What it is: CVE-2019-14748 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 Aug 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-14748 exists.

Affected product: n/a. 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-2019-14748/ (Markdown: https://insights.sbomify.com/CVE-2019-14748/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-14748
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-14748
- OSV: https://osv.dev/vulnerability/CVE-2019-14748

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-14748/
Summaries are generated and may contain mistakes; the official description above is the record.