# CVE-2022-22757: Security feature bypass in Firefox

> Attackers could control the user's browser via local connections when WebDriver was enabled, bypassing security restrictions.

- **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:** Yes
- **Published:** 22 Dec 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-fc8f-jhcw-p24v, UBUNTU-CVE-2022-22757

## What is CVE-2022-22757?

CVE-2022-22757 is a medium-severity vulnerability in Mozilla Firefox, published on 22 Dec 2022. 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

Remote Agent, used in WebDriver, did not validate the Host or Origin headers. This could have allowed websites to connect back locally to the user's browser to control it. <br>*This bug only affected Firefox when WebDriver was enabled, which is not the default configuration.*. This vulnerability affects Firefox < 97.

Weakness: CWE-346 (Origin Validation Error), CWE-345 (Insufficient Verification of Data Authenticity)

## Which versions are affected by CVE-2022-22757?

It affects 1 product.


Products: Mozilla Firefox.

## How do I fix CVE-2022-22757?

Upgrade to a fixed version.

## Is CVE-2022-22757 being exploited?

There is no known exploitation of CVE-2022-22757 in the wild and no public exploit code.

## Other vulnerabilities in Mozilla Firefox

- [CVE-2019-11708](https://insights.sbomify.com/CVE-2019-11708/): Mozilla Firefox and Thunderbird Sandbox Escape (critical 10.0, exploited in the wild)
- [CVE-2010-3765](https://insights.sbomify.com/CVE-2010-3765/): Mozilla Multiple Products Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2022-26486](https://insights.sbomify.com/CVE-2022-26486/): Mozilla Firefox Use-After-Free (critical 9.6, exploited in the wild)
- [CVE-2022-26485](https://insights.sbomify.com/CVE-2022-26485/): Mozilla Firefox Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2019-11707](https://insights.sbomify.com/CVE-2019-11707/): Mozilla Firefox and Thunderbird Type Confusion (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-22757 and fix it if it is affected.

What it is: CVE-2022-22757 is a medium-severity vulnerability in Mozilla Firefox, published on 22 Dec 2022. 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-2022-22757 in the wild and no public exploit code.

Affected product: Mozilla Firefox. 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-2022-22757/ (Markdown: https://insights.sbomify.com/CVE-2022-22757/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-22757
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-22757
- OSV: https://osv.dev/vulnerability/CVE-2022-22757

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-22757/
Summaries are generated and may contain mistakes; the official description above is the record.