# CVE-2018-17997: Cross-site scripting in n/a

> Attackers can inject malicious scripts via conversation titles in LayerBB, potentially leading to session hijacking or code execution.

- **Severity:** Medium 6.1 (`CVSS:3.0/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:** No
- **Published:** 17 Mar 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-c2h7-pxvr-px58

## What is CVE-2018-17997?

CVE-2018-17997 is a medium-severity cross-site scripting vulnerability in n/a, published on 17 Mar 2019. 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

LayerBB 1.1.1 allows XSS via the titles of conversations (PMs).

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

## Which versions are affected by CVE-2018-17997?

It affects 1 product.


Products: Layerbb Layerbb.

## How do I fix CVE-2018-17997?

No fix has been published for CVE-2018-17997 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-17997 being exploited?

There is no known exploitation of CVE-2018-17997 in the wild and no public exploit code.

Public exploit code:

- LayerBB 1.1.1 - Persistent Cross-Site Scripting (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2019-13973](https://insights.sbomify.com/CVE-2019-13973/): File upload in n/a (critical 9.8)
- [CVE-2018-17988](https://insights.sbomify.com/CVE-2018-17988/): SQL injection in n/a (critical 9.8)
- [CVE-2019-16531](https://insights.sbomify.com/CVE-2019-16531/): LayerBB before 1.1.4 has multiple CSRF issues, as demonstrated by changing the System Settings via admin/general.php. (high 8.8)
- [CVE-2019-13974](https://insights.sbomify.com/CVE-2019-13974/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2018-17996](https://insights.sbomify.com/CVE-2018-17996/): Cross-site request forgery in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-17997 and fix it if it is affected.

What it is: CVE-2018-17997 is a medium-severity cross-site scripting vulnerability in n/a, published on 17 Mar 2019. 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-2018-17997 in the wild and no public exploit code.

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-2018-17997/ (Markdown: https://insights.sbomify.com/CVE-2018-17997/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-17997
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-17997
- OSV: https://osv.dev/vulnerability/CVE-2018-17997

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-17997/
Summaries are generated and may contain mistakes; the official description above is the record.