# CVE-2022-2821: Missing Critical Step in Authentication in namelessmc/nameless

> Attackers can bypass authentication due to a missing critical step, potentially taking over accounts or escalating privileges in NamelessMC.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Aug 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-xjp5-5ph6-c66c

## What is CVE-2022-2821?

CVE-2022-2821 is a critical authentication bypass vulnerability in namelessmc/nameless, published on 15 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Missing Critical Step in Authentication in GitHub repository namelessmc/nameless prior to v2.0.2.

Weakness: CWE-304 (Missing Critical Step in Authentication)

## Which versions are affected by CVE-2022-2821?

It affects 1 product.


Products: Namelessmc Nameless.

## How do I fix CVE-2022-2821?

No fix has been published for CVE-2022-2821 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-2821 being exploited?

There is no known exploitation of CVE-2022-2821 in the wild and no public exploit code.

## Other vulnerabilities in namelessmc/nameless

- [CVE-2025-54117](https://insights.sbomify.com/CVE-2025-54117/): NamelessMC allows Stored Cross-Site Scripting (XSS) in dashboard text editor (critical 9.1)
- [CVE-2025-22144](https://insights.sbomify.com/CVE-2025-22144/): Account Takeover in NamelessMC (critical 9.0)
- [CVE-2025-32389](https://insights.sbomify.com/CVE-2025-32389/): NamelessMC Vulnerable to SQL Injections in /user/messaging and /panel/users/reports Pages (high 8.6)
- [CVE-2025-29784](https://insights.sbomify.com/CVE-2025-29784/): NamelessMC Has Lack of Length Validation for s Parameter in GET Requests (high 7.5)
- [CVE-2025-30357](https://insights.sbomify.com/CVE-2025-30357/): NamelessMC Forum Topic Deletion Triggered by Unrelated User Deletion (high 7.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-2821 and fix it if it is affected.

What it is: CVE-2022-2821 is a critical authentication bypass vulnerability in namelessmc/nameless, published on 15 Aug 2022. 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-2022-2821 in the wild and no public exploit code.

Affected product: namelessmc/nameless. 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-2022-2821/ (Markdown: https://insights.sbomify.com/CVE-2022-2821/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-2821
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-2821
- OSV: https://osv.dev/vulnerability/CVE-2022-2821

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-2821/
Summaries are generated and may contain mistakes; the official description above is the record.