# CVE-2023-29724: Missing authorization in n/a

> Unauthorized apps can modify user preference data in the BT21 x BTS Wallpaper Android app, leading to privilege escalation.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 2 Jun 2023
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-9c63-ccq5-cqm8

## What is CVE-2023-29724?

CVE-2023-29724 is a high-severity missing authorization vulnerability in n/a, published on 2 Jun 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

The BT21 x BTS Wallpaper app 12 for Android allows unauthorized apps to actively request permission to modify data in the database that records information about a user's personal preferences and will be loaded into memory to be read and used when the app is opened. An attacker could tamper with this data to cause an escalation of privilege attack.

## Which versions are affected by CVE-2023-29724?

It affects 1 product.


Products: Bt21 X Bts Wallpaper Project Bt21 X Bts Wallpaper.

## How do I fix CVE-2023-29724?

No fix has been published for CVE-2023-29724 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-29724 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-29724 exists.

## Other vulnerabilities in n/a

- [CVE-2023-29725](https://insights.sbomify.com/CVE-2023-29725/): Denial of service in n/a (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-29724 and fix it if it is affected.

What it is: CVE-2023-29724 is a high-severity missing authorization vulnerability in n/a, published on 2 Jun 2023. It can only be exploited from the same machine or local 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-2023-29724 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-2023-29724/ (Markdown: https://insights.sbomify.com/CVE-2023-29724/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-29724
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-29724
- OSV: https://osv.dev/vulnerability/CVE-2023-29724

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-29724/
Summaries are generated and may contain mistakes; the official description above is the record.