# CVE-2023-28855: Fields GLPI plugin vulnerable to unauthorized write access to additional fields

> An authenticated user can write data to any custom field container in the GLPI Fields plugin, bypassing configured access restrictions.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Apr 2023
- **Updated:** 10 Feb 2025
- **Also known as:** GHSA-52vv-hm4x-8584

## What is CVE-2023-28855?

CVE-2023-28855 is a medium-severity missing authorization vulnerability in pluginsGLPI fields, published on 5 Apr 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Fields is a GLPI plugin that allows users to add custom fields on GLPI items forms. Prior to versions 1.13.1 and 1.20.4, lack of access control check allows any authenticated user to write data to any fields container, including those to which they have no configured access. Versions 1.13.1 and 1.20.4 contain a patch for this issue.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2023-28855?

It affects 1 product.


Products: Teclib-Edition Fields.

## How do I fix CVE-2023-28855?

No fix has been published for CVE-2023-28855 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-28855 being exploited?

There is no known exploitation of CVE-2023-28855 in the wild and no public exploit code.

## Other vulnerabilities in pluginsGLPI fields

- [CVE-2019-12723](https://insights.sbomify.com/CVE-2019-12723/): SQL injection in n/a (critical 9.8)
- [CVE-2026-23489](https://insights.sbomify.com/CVE-2026-23489/): Fields GLPI plugin vulnerable to RCE in dropdown generation (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-28855 and fix it if it is affected.

What it is: CVE-2023-28855 is a medium-severity missing authorization vulnerability in pluginsGLPI fields, published on 5 Apr 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-28855 in the wild and no public exploit code.

Affected product: pluginsGLPI fields. 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-2023-28855/ (Markdown: https://insights.sbomify.com/CVE-2023-28855/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-28855
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-28855
- OSV: https://osv.dev/vulnerability/CVE-2023-28855

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-28855/
Summaries are generated and may contain mistakes; the official description above is the record.