# CVE-2023-1877: Command Injection in microweber/microweber

> Attackers can execute arbitrary commands on the server hosting the Microweber CMS application.

- **Severity:** Medium 6.1 (`CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 5 Apr 2023
- **Updated:** 10 Feb 2025
- **Also known as:** GHSA-582p-2fpg-x226

## What is CVE-2023-1877?

CVE-2023-1877 is a medium-severity command injection vulnerability in Microweber Microweber, published on 5 Apr 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

Command Injection in GitHub repository microweber/microweber prior to 1.3.3.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2023-1877?

2 open source packages ship an affected version, including microweber/microweber. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `microweber/microweber` | Packagist | All versions | 1.3.3 |
| `microweber/microweber` | Packagist | All versions | 1.3.3 |

Products: Microweber Microweber.

## How do I fix CVE-2023-1877?

Upgrade microweber/microweber to 1.3.3 or later.

## Is CVE-2023-1877 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1877 exists.

## Other vulnerabilities in Microweber Microweber

- [CVE-2022-0558](https://insights.sbomify.com/CVE-2022-0558/): Cross-site Scripting (XSS) - Stored in microweber/microweber (critical 9.8)
- [CVE-2020-23138](https://insights.sbomify.com/CVE-2020-23138/): File upload in n/a (critical 9.8)
- [CVE-2022-0688](https://insights.sbomify.com/CVE-2022-0688/): Business Logic Errors in microweber/microweber (critical 9.4)
- [CVE-2022-0660](https://insights.sbomify.com/CVE-2022-0660/): Generation of Error Message Containing Sensitive Information in microweber/microweber (critical 9.4)
- [CVE-2022-0913](https://insights.sbomify.com/CVE-2022-0913/): Integer Overflow or Wraparound in microweber/microweber (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-1877 and fix it if it is affected.

What it is: CVE-2023-1877 is a medium-severity command injection vulnerability in Microweber Microweber, published on 5 Apr 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-2023-1877 exists.

Affected packages and fixed versions:
- microweber/microweber (Packagist): affected all versions; fixed in 1.3.3
- microweber/microweber (Packagist): affected all versions; fixed in 1.3.3

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-2023-1877/ (Markdown: https://insights.sbomify.com/CVE-2023-1877/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-1877
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1877
- OSV: https://osv.dev/vulnerability/CVE-2023-1877

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-1877/
Summaries are generated and may contain mistakes; the official description above is the record.