# CVE-2023-32751: Cross-site scripting in n/a

> Attackers can execute arbitrary JavaScript via stored XSS in Pydio Cells by exploiting hardcoded signing secrets to serve malicious HTML files inline.

- **Severity:** Medium 5.4 (`CVSS:3.1/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:** 8 Jun 2023
- **Updated:** 6 Jan 2025
- **Also known as:** GHSA-r9f7-x9f6-fp64

## What is CVE-2023-32751?

CVE-2023-32751 is a medium-severity cross-site scripting vulnerability in n/a, published on 8 Jun 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

Pydio Cells through 4.1.2 allows XSS. Pydio Cells implements the download of files using presigned URLs which are generated using the Amazon AWS SDK for JavaScript [1]. The secrets used to sign these URLs are hardcoded and exposed through the JavaScript files of the web application. Therefore, it is possible to generate valid signatures for arbitrary download URLs. By uploading an HTML file and modifying the download URL to serve the file inline instead of as an attachment, any included JavaScript code is executed when the URL is opened in a browser, leading to a cross-site scripting vulnerability.

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

## Which versions are affected by CVE-2023-32751?

It affects 1 product.


Products: Pydio Cells.

## How do I fix CVE-2023-32751?

No fix has been published for CVE-2023-32751 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-32751 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-32751 exists.

Public exploit code:

- Pydio Cells 4.1.2 - Cross-Site Scripting (XSS) via File Download (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2023-32749](https://insights.sbomify.com/CVE-2023-32749/): Privilege escalation in n/a (high 8.8)
- [CVE-2019-12901](https://insights.sbomify.com/CVE-2019-12901/): Path traversal in n/a (high 8.8)
- [CVE-2020-12851](https://insights.sbomify.com/CVE-2020-12851/): Path traversal in n/a (high 8.1)
- [CVE-2020-12847](https://insights.sbomify.com/CVE-2020-12847/): Command injection in n/a (high 7.2)
- [CVE-2020-12850](https://insights.sbomify.com/CVE-2020-12850/): The following vulnerability applies only to the Pydio Cells Enterprise OVF version 2.0.4. (high 7.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-32751 and fix it if it is affected.

What it is: CVE-2023-32751 is a medium-severity cross-site scripting vulnerability in n/a, published on 8 Jun 2023. 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-2023-32751 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-2023-32751/ (Markdown: https://insights.sbomify.com/CVE-2023-32751/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-32751
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-32751
- OSV: https://osv.dev/vulnerability/CVE-2023-32751

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-32751/
Summaries are generated and may contain mistakes; the official description above is the record.