# CVE-2023-2255: Remote documents loaded without prompt via IFrame

> Attackers can bypass security prompts to load external content in LibreOffice documents, potentially exposing users to malicious data.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 25 May 2023
- **Updated:** 2 Aug 2024
- **Also known as:** DEBIAN-CVE-2023-2255, GHSA-6pmq-j4m3-q2r8, UBUNTU-CVE-2023-2255

## What is CVE-2023-2255?

CVE-2023-2255 is a medium-severity vulnerability in Debian Debian Linux, published on 25 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper access control in editor components of The Document Foundation LibreOffice allowed an attacker to craft a document that would cause external links to be loaded without prompt. In the affected versions of LibreOffice documents that used "floating frames" linked to external files, would load the contents of those frames without prompting the user for permission to do so. This was inconsistent with the treatment of other linked content in LibreOffice. This issue affects: The Document Foundation LibreOffice 7.4 versions prior to 7.4.7; 7.5 versions prior to 7.5.3.

Weakness: CWE-264

## Which versions are affected by CVE-2023-2255?

It affects 2 products.


Products: Debian Debian Linux, Libreoffice Libreoffice.

## How do I fix CVE-2023-2255?

Upgrade to a fixed version.

## Is CVE-2023-2255 being exploited?

There is no known exploitation of CVE-2023-2255 in the wild and no public exploit code.

Public exploit code:

- CVE-2023-2255 Libre Office  (github_poc): https://github.com/elweth-sec/CVE-2023-2255
- https://github.com/SaintMichae64/CVE-2023-2255 (github_poc): https://github.com/SaintMichae64/CVE-2023-2255
- CVE-2023-2255 for LPE (github_poc): https://github.com/G4sp4rCS/CVE-2023-2255

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2255 and fix it if it is affected.

What it is: CVE-2023-2255 is a medium-severity vulnerability in Debian Debian Linux, published on 25 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-2255 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2023-2255/ (Markdown: https://insights.sbomify.com/CVE-2023-2255/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2255
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2255
- OSV: https://osv.dev/vulnerability/CVE-2023-2255

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2255/
Summaries are generated and may contain mistakes; the official description above is the record.