# CVE-2023-41362: Code injection in n/a

> Privileged users can execute arbitrary code via template injection due to PHP type juggling flaws in input validation.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Aug 2023
- **Updated:** 1 Oct 2024
- **Also known as:** GHSA-pr74-wvp3-q6f5

## What is CVE-2023-41362?

CVE-2023-41362 is a high-severity code injection vulnerability in Mybb Mybb, published on 29 Aug 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

MyBB before 1.8.36 allows Code Injection by users with certain high privileges. Templates in Admin CP intentionally use eval, and there was some validation of the input to eval, but type juggling interfered with this when using PCRE within PHP.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2023-41362?

It affects 1 product.


Products: Mybb Mybb.

## How do I fix CVE-2023-41362?

No fix has been published for CVE-2023-41362 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-41362 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-41362 exists.

Public exploit code:

- https://github.com/SorceryIE/CVE-2023-41362_MyBB_ACP_RCE (github_poc): https://github.com/SorceryIE/CVE-2023-41362_MyBB_ACP_RCE

## Other vulnerabilities in Mybb Mybb

- [CVE-2011-10018](https://insights.sbomify.com/CVE-2011-10018/): myBB 1.6.4 Backdoor Arbitrary Command Execution (critical 10.0)
- [CVE-2015-2786](https://insights.sbomify.com/CVE-2015-2786/): Information disclosure in n/a (critical 10.0)
- [CVE-2011-5133](https://insights.sbomify.com/CVE-2011-5133/): Cross-site scripting in n/a (critical 10.0)
- [CVE-2006-0218](https://insights.sbomify.com/CVE-2006-0218/): SQL injection in n/a (critical 10.0)
- [CVE-2020-22612](https://insights.sbomify.com/CVE-2020-22612/): Code injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-41362 and fix it if it is affected.

What it is: CVE-2023-41362 is a high-severity code injection vulnerability in Mybb Mybb, published on 29 Aug 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-41362 exists.

Affected product: Mybb Mybb. 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-2023-41362/ (Markdown: https://insights.sbomify.com/CVE-2023-41362/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-41362
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-41362
- OSV: https://osv.dev/vulnerability/CVE-2023-41362

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-41362/
Summaries are generated and may contain mistakes; the official description above is the record.