# CVE-2020-10966: Open redirect in n/a

> Attackers can manipulate the Host header to send password reset links to attacker-controlled servers, leading to account takeover.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N`)
- **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:** 25 Mar 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-qwg2-rf9c-v87f

## What is CVE-2020-10966?

CVE-2020-10966 is a medium-severity vulnerability in n/a, published on 25 Mar 2020. 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

In the Password Reset Module in VESTA Control Panel through 0.9.8-25 and Hestia Control Panel before 1.1.1, Host header manipulation leads to account takeover because the victim receives a reset URL containing an attacker-controlled server name.

## Which versions are affected by CVE-2020-10966?

It affects 2 products.


Products: Hestiacp Control Panel, Vestacp Control Panel.

## How do I fix CVE-2020-10966?

No fix has been published for CVE-2020-10966 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-10966 being exploited?

There is no known exploitation of CVE-2020-10966 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-2550](https://insights.sbomify.com/CVE-2022-2550/): OS Command Injection in hestiacp/hestiacp (critical 9.9)
- [CVE-2022-1509](https://insights.sbomify.com/CVE-2022-1509/): Command Injection Vulnerability in hestiacp/hestiacp (critical 9.9)
- [CVE-2022-2626](https://insights.sbomify.com/CVE-2022-2626/): Incorrect Privilege Assignment in hestiacp/hestiacp (critical 9.1)
- [CVE-2023-5839](https://insights.sbomify.com/CVE-2023-5839/): Privilege Chaining in hestiacp/hestiacp (high 8.8)
- [CVE-2025-30007](https://insights.sbomify.com/CVE-2025-30007/): HestiaCP < 1.9.5 Authenticated OS Command Injection via DNS Record Management (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-10966 and fix it if it is affected.

What it is: CVE-2020-10966 is a medium-severity vulnerability in n/a, published on 25 Mar 2020. 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-2020-10966 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-2020-10966/ (Markdown: https://insights.sbomify.com/CVE-2020-10966/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-10966
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-10966
- OSV: https://osv.dev/vulnerability/CVE-2020-10966

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-10966/
Summaries are generated and may contain mistakes; the official description above is the record.