# CVE-2026-30842: Wallos: Authenticated Missing Authorization Allows Deletion of Other Users’ Uploaded Avatars

> Authenticated users can delete other users' avatar files due to missing ownership verification in the deletion endpoint.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 7 Mar 2026
- **Updated:** 10 Mar 2026
- **Also known as:** GHSA-qw24-3pxr-3j6r

## What is CVE-2026-30842?

CVE-2026-30842 is a medium-severity missing authorization vulnerability in ellite Wallos, published on 7 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, Wallos allows an authenticated user to delete avatar files uploaded by other users. The avatar deletion endpoint does not verify that the requested avatar belongs to the current user. As a result, any authenticated user who knows or can discover another user's uploaded avatar filename can delete that file. This issue has been patched in version 4.6.2.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-30842?

It affects 1 product.


Products: Wallosapp Wallos.

## How do I fix CVE-2026-30842?

No fix has been published for CVE-2026-30842 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30842 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30842 exists.

## Other vulnerabilities in ellite Wallos

- [CVE-2024-55371](https://insights.sbomify.com/CVE-2024-55371/): File upload in n/a (critical 9.8)
- [CVE-2024-55372](https://insights.sbomify.com/CVE-2024-55372/): File upload in n/a (critical 9.8)
- [CVE-2026-30840](https://insights.sbomify.com/CVE-2026-30840/): Wallos: Server-Side Request Forgery (SSRF) in Notification Testers (high 8.8)
- [CVE-2026-30828](https://insights.sbomify.com/CVE-2026-30828/): Wallos: SSRF via url parameter leading to File Traversal (high 8.7)
- [CVE-2026-33407](https://insights.sbomify.com/CVE-2026-33407/): Wallos: SSRF via HTTP Proxy Environment Variable (high 8.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30842 and fix it if it is affected.

What it is: CVE-2026-30842 is a medium-severity missing authorization vulnerability in ellite Wallos, published on 7 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30842 exists.

Affected product: ellite Wallos. 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-2026-30842/ (Markdown: https://insights.sbomify.com/CVE-2026-30842/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30842
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30842
- OSV: https://osv.dev/vulnerability/CVE-2026-30842

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30842/
Summaries are generated and may contain mistakes; the official description above is the record.