# CVE-2024-31462: Limited file write in Stable-diffusion-webui - GHSL-2024-010

> An attacker can write JSON files to arbitrary locations on the server via path traversal in the backup/restore feature.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **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:** 12 Apr 2024
- **Updated:** 2 Aug 2024

## What is CVE-2024-31462?

CVE-2024-31462 is a medium-severity path traversal vulnerability in AUTOMATIC1111 stable-diffusion-webui, published on 12 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

stable-diffusion-webui is a web interface for Stable Diffusion, implemented using Gradio library. Stable-diffusion-webui 1.7.0 is vulnerable to a limited file write affecting Windows systems. The create_ui method (Backup/Restore tab) in modules/ui_extensions.py takes user input into the config_save_name variable on line 653. This user input is later used in the save_config_state method and used to create a file path on line 65, which is afterwards opened for writing on line 67, which leads to a limited file write exploitable on Windows systems. This issue may lead to limited file write. It allows for writing json files anywhere on the server where the web server has access.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2024-31462?


## How do I fix CVE-2024-31462?

No fix has been published for CVE-2024-31462 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-31462 being exploited?

There is no known exploitation of CVE-2024-31462 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-31462 and fix it if it is affected.

What it is: CVE-2024-31462 is a medium-severity path traversal vulnerability in AUTOMATIC1111 stable-diffusion-webui, published on 12 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-31462 in the wild and no public exploit code.

Affected product: AUTOMATIC1111 stable-diffusion-webui. 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-2024-31462/ (Markdown: https://insights.sbomify.com/CVE-2024-31462/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-31462
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-31462
- OSV: https://osv.dev/vulnerability/CVE-2024-31462

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-31462/
Summaries are generated and may contain mistakes; the official description above is the record.