# CVE-2020-9470: Information disclosure in n/a

> Local users can read session cookies to hijack admin sessions and execute Lua commands as root in Wing FTP Server.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Mar 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-6p46-7gq6-xc33

## What is CVE-2020-9470?

CVE-2020-9470 is a high-severity vulnerability in n/a, published on 7 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An issue was discovered in Wing FTP Server 6.2.5 before February 2020. Due to insecure permissions when handling session cookies, a local user may view the contents of the session and session_admin directories, which expose active session cookies within the Wing FTP HTTP interface and administration panel. These cookies may be used to hijack user and administrative sessions, including the ability to execute Lua commands as root within the administration panel.

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource)

## Which versions are affected by CVE-2020-9470?

It affects 1 product.


Products: Wftpserver Wing Ftp Server.

## How do I fix CVE-2020-9470?

No fix has been published for CVE-2020-9470 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-9470 being exploited?

There is no known exploitation of CVE-2020-9470 in the wild and no public exploit code.

Public exploit code:

- Wing FTP Server 6.2.5 - Privilege Escalation (github_poc): https://github.com/Al1ex/CVE-2020-9470

## Other vulnerabilities in n/a

- [CVE-2025-47812](https://insights.sbomify.com/CVE-2025-47812/): Wing FTP Server Improper Neutralization of Null Byte or NUL Character (critical 10.0, exploited in the wild)
- [CVE-2025-47813](https://insights.sbomify.com/CVE-2025-47813/): Wing FTP Server Information Disclosure (medium 4.3, exploited in the wild)
- [CVE-2026-44403](https://insights.sbomify.com/CVE-2026-44403/): Wing FTP Server < 8.1.3 Authenticated Remote Code Execution via Session Serialization (high 8.6)
- [CVE-2020-37032](https://insights.sbomify.com/CVE-2020-37032/): Wing FTP Server 6.3.8 - Remote Code Execution (high 8.6)
- [CVE-2019-25267](https://insights.sbomify.com/CVE-2019-25267/): Wing FTP Server 6.0.7 - Unquoted Service Path (high 8.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-9470 and fix it if it is affected.

What it is: CVE-2020-9470 is a high-severity vulnerability in n/a, published on 7 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-9470 in the wild and no public exploit code.

Affected product: n/a. 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-2020-9470/ (Markdown: https://insights.sbomify.com/CVE-2020-9470/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-9470
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-9470
- OSV: https://osv.dev/vulnerability/CVE-2020-9470

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-9470/
Summaries are generated and may contain mistakes; the official description above is the record.