# CVE-2024-40521: Code injection in n/a

> Authenticated attackers can bypass file editing restrictions in SeaCMS to inject code, execute arbitrary commands, and gain system privileges.

- **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:** 12 Jul 2024
- **Updated:** 13 Mar 2025
- **Also known as:** GHSA-882r-xjmv-4jmx

## What is CVE-2024-40521?

CVE-2024-40521 is a high-severity code injection vulnerability in Seacms Seacms, published on 12 Jul 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

SeaCMS 12.9 has a remote code execution vulnerability. The vulnerability is due to the fact that although admin_template.php imposes certain restrictions on the edited file, attackers can still bypass the restrictions and write code in some way, allowing authenticated attackers to exploit the vulnerability to execute arbitrary commands and gain system privileges.

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

## Which versions are affected by CVE-2024-40521?

It affects 1 product.


Products: Seacms Seacms.

## How do I fix CVE-2024-40521?

No fix has been published for CVE-2024-40521 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-40521 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-40521 exists.

## Other vulnerabilities in Seacms Seacms

- [CVE-2025-44073](https://insights.sbomify.com/CVE-2025-44073/): SQL injection in n/a (critical 9.8)
- [CVE-2025-44071](https://insights.sbomify.com/CVE-2025-44071/): Code injection in n/a (critical 9.8)
- [CVE-2025-44072](https://insights.sbomify.com/CVE-2025-44072/): SQL injection in n/a (critical 9.8)
- [CVE-2025-44074](https://insights.sbomify.com/CVE-2025-44074/): SQL injection in n/a (critical 9.8)
- [CVE-2025-29647](https://insights.sbomify.com/CVE-2025-29647/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-40521 and fix it if it is affected.

What it is: CVE-2024-40521 is a high-severity code injection vulnerability in Seacms Seacms, published on 12 Jul 2024. 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-2024-40521 exists.

Affected product: Seacms Seacms. 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-2024-40521/ (Markdown: https://insights.sbomify.com/CVE-2024-40521/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-40521
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-40521
- OSV: https://osv.dev/vulnerability/CVE-2024-40521

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-40521/
Summaries are generated and may contain mistakes; the official description above is the record.