# CVE-2023-2981: Abstrium Pydio Cells Chat cross site scripting

> Remote attackers can execute arbitrary scripts in the Pydio Cells Chat component, potentially compromising user sessions or data.

- **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:** Yes
- **Published:** 30 May 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-wmfc-g86p-fjvr, GO-2023-1809

## What is CVE-2023-2981?

CVE-2023-2981 is a low-severity cross-site scripting vulnerability in Abstrium Pydio Cells, published on 30 May 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, which was classified as problematic, has been found in Abstrium Pydio Cells 4.2.0. This issue affects some unknown processing of the component Chat. The manipulation leads to basic cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 4.2.1 is able to address this issue. It is recommended to upgrade the affected component. The identifier VDB-230213 was assigned to this vulnerability.

Weakness: CWE-80 (Improper Neutralization of Script-Related HTML Tags in a Web Page)

## Which versions are affected by CVE-2023-2981?

4 open source packages ship an affected version, including github.com/pydio/cells and github.com/pydio/cells/v4. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/pydio/cells` | Go | All versions | None |
| `github.com/pydio/cells` | Go | All versions | 4.2.1 |
| `github.com/pydio/cells` | Go | All versions | 4.2.1 |
| `github.com/pydio/cells/v4` | Go | All versions | 4.2.1 |

Products: Abstrium Pydio Cells.

## How do I fix CVE-2023-2981?

Upgrade github.com/pydio/cells to 4.2.1 or later.

## Is CVE-2023-2981 being exploited?

There is no known exploitation of CVE-2023-2981 in the wild and no public exploit code.

## Other vulnerabilities in Abstrium Pydio Cells

- [CVE-2023-2980](https://insights.sbomify.com/CVE-2023-2980/): Abstrium Pydio Cells User Creation resource injection (medium 6.3)
- [CVE-2023-2979](https://insights.sbomify.com/CVE-2023-2979/): Abstrium Pydio Cells User Creation access control (medium 4.7)
- [CVE-2023-2978](https://insights.sbomify.com/CVE-2023-2978/): Abstrium Pydio Cells Change Subscription authorization (medium 4.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2981 and fix it if it is affected.

What it is: CVE-2023-2981 is a low-severity cross-site scripting vulnerability in Abstrium Pydio Cells, published on 30 May 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-2023-2981 in the wild and no public exploit code.

Affected packages and fixed versions:
- github.com/pydio/cells (Go): affected all versions; no fix listed
- github.com/pydio/cells (Go): affected all versions; fixed in 4.2.1
- github.com/pydio/cells (Go): affected all versions; fixed in 4.2.1
- github.com/pydio/cells/v4 (Go): affected all versions; fixed in 4.2.1

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-2023-2981/ (Markdown: https://insights.sbomify.com/CVE-2023-2981/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2981
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2981
- OSV: https://osv.dev/vulnerability/CVE-2023-2981

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2981/
Summaries are generated and may contain mistakes; the official description above is the record.