# CVE-2020-7874: NEXACRO14 Runtime arbitrary file download and execution vulnerability

> Attackers can execute arbitrary code via the NEXACRO14 Runtime ActiveX control due to insufficient validation of downloaded files.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Sep 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-8qf8-7w4h-xrpc

## What is CVE-2020-7874?

CVE-2020-7874 is a high-severity code injection vulnerability in TOBESOFT NEXACRO14, published on 9 Sep 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Download of code without integrity check vulnerability in NEXACRO14 Runtime ActiveX control of tobesoft Co., Ltd allows the attacker to cause an arbitrary file download and execution. This vulnerability is due to incomplete validation of file download URL or file extension.

Weakness: CWE-494 (Download of Code Without Integrity Check)

## Which versions are affected by CVE-2020-7874?

It affects 1 product.


Products: Tobesoft Nexacro.

## How do I fix CVE-2020-7874?

No fix has been published for CVE-2020-7874 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-7874 being exploited?

There is no known exploitation of CVE-2020-7874 in the wild and no public exploit code.

## Other vulnerabilities in TOBESOFT NEXACRO14

- [CVE-2021-26625](https://insights.sbomify.com/CVE-2021-26625/): tobesoft Nexacro arbitrary file download vulnerability (high 8.8)
- [CVE-2021-26613](https://insights.sbomify.com/CVE-2021-26613/): tobesoft nexacro arbitrary file creation vulnerability (high 8.1)
- [CVE-2021-26612](https://insights.sbomify.com/CVE-2021-26612/): tobesoft Nexacro platform arbitrary file creation vulnerability (high 8.1)
- [CVE-2021-26607](https://insights.sbomify.com/CVE-2021-26607/): TOBESOFT NEXACRO17 arbitrary command execution vulnerability (high 8.1)
- [CVE-2019-19167](https://insights.sbomify.com/CVE-2019-19167/): Tobesoft Nexacro14 ActiveX File Download Vulnerability (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-7874 and fix it if it is affected.

What it is: CVE-2020-7874 is a high-severity code injection vulnerability in TOBESOFT NEXACRO14, published on 9 Sep 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-7874 in the wild and no public exploit code.

Affected product: TOBESOFT NEXACRO14. 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-2020-7874/ (Markdown: https://insights.sbomify.com/CVE-2020-7874/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-7874
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-7874
- OSV: https://osv.dev/vulnerability/CVE-2020-7874

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-7874/
Summaries are generated and may contain mistakes; the official description above is the record.