---
title: "CVE-2022-28286\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2022-28286?format=md
keywords: index, follow
---

# CVE-2022-28286

Publication date 6 April 2022

Last updated 25 August 2025

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**5.4 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2022-28286?format=md#impact-score)

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## Description

Due to a layout change, iframe contents could have been rendered outside of
its border. This could have led to user confusion or spoofing attacks. This
vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR <
91.8.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| firefox | 23.04 lunar | Fixed 1:1snap1-0ubuntu1 |
| 22.10 kinetic | Fixed 1:1snap1-0ubuntu1 |
| 22.04 LTS jammy | Fixed 1:1snap1-0ubuntu1 |
| 21.10 impish | Fixed 99.0+build2-0ubuntu0.21.10.2 |
| 20.04 LTS focal | Fixed 99.0+build2-0ubuntu0.20.04.2 |
| 18.04 LTS bionic | Fixed 99.0+build2-0ubuntu0.18.04.2 |
| 16.04 LTS xenial | Ignored end of standard support |
| 14.04 LTS trusty | Not in release |
| thunderbird | 23.04 lunar | Not affected |
| 22.10 kinetic | Not affected |
| 22.04 LTS jammy | Not affected |
| 21.10 impish | Fixed 1:91.8.1+build1-0ubuntu0.21.10.1 |
| 20.04 LTS focal | Fixed 1:91.8.1+build1-0ubuntu0.20.04.1 |
| 18.04 LTS bionic | Fixed 1:91.8.1+build1-0ubuntu0.18.04.1 |
| 16.04 LTS xenial | Ignored end of standard support |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.4 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | Required |
  | Scope | Unchanged |
  | Confidentiality impact | Low |
  | Integrity impact | Low |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.4 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28286)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-28286)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-28286)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-28286)

### Related Ubuntu Security Notices (USN)

+ [USN-5370-1](https://usn.ubuntu.com/USN-5370-1)
+ Firefox vulnerabilities
+ 7 April 2022

+ [USN-5393-1](https://usn.ubuntu.com/USN-5393-1)
+ Thunderbird vulnerabilities
+ 27 April 2022

### Other references

* <https://www.mozilla.org/en-US/security/advisories/mfsa2022-13/#CVE-2022-28286>
* <https://www.mozilla.org/en-US/security/advisories/mfsa2022-14/#CVE-2022-28286>
* <https://www.mozilla.org/en-US/security/advisories/mfsa2022-15/#CVE-2022-28286>
* <https://www.cve.org/CVERecord?id=CVE-2022-28286>