# CVE-2023-6439: ZenTao PMS cross site scripting

> Remote attackers can execute arbitrary scripts in ZenTao PMS, potentially compromising user sessions and data integrity.

- **Severity:** Low 3.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/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:** 30 Nov 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-hfqm-3jpv-59hp

## What is CVE-2023-6439?

CVE-2023-6439 is a low-severity cross-site scripting vulnerability in ZenTao PMS, published on 30 Nov 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A vulnerability classified as problematic was found in ZenTao PMS 18.8. Affected by this vulnerability is an unknown functionality. The manipulation leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-246439.

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

## Which versions are affected by CVE-2023-6439?

It affects 1 product.


Products: Easycorp Zentao.

## How do I fix CVE-2023-6439?

No fix has been published for CVE-2023-6439 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-6439 being exploited?

There is no known exploitation of CVE-2023-6439 in the wild and no public exploit code.

## Other vulnerabilities in ZenTao PMS

- [CVE-2024-24202](https://insights.sbomify.com/CVE-2024-24202/): File upload in n/a (critical 9.8)
- [CVE-2024-24216](https://insights.sbomify.com/CVE-2024-24216/): Command injection in n/a (critical 9.8)
- [CVE-2020-28165](https://insights.sbomify.com/CVE-2020-28165/): File upload in n/a (critical 9.8)
- [CVE-2023-44827](https://insights.sbomify.com/CVE-2023-44827/): Command injection in n/a (high 8.8)
- [CVE-2022-47745](https://insights.sbomify.com/CVE-2022-47745/): SQL injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6439 and fix it if it is affected.

What it is: CVE-2023-6439 is a low-severity cross-site scripting vulnerability in ZenTao PMS, published on 30 Nov 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-6439 in the wild and no public exploit code.

Affected product: ZenTao PMS. 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-2023-6439/ (Markdown: https://insights.sbomify.com/CVE-2023-6439/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6439
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6439
- OSV: https://osv.dev/vulnerability/CVE-2023-6439

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-6439/
Summaries are generated and may contain mistakes; the official description above is the record.