# CVE-2023-28161: Mozilla Firefox and 2 others: Improper Preservation of Permissions

CVE-2023-28161 is fixed in 5 products on 2 platforms, first by firefox 111.0+build2-0ubuntu0.18.04.1, released March 14, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-28161
- Priority: High
- CVSS: 8.8 (Low)
- EPSS: 0.0062
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 14, 2023
- Weakness: CWE-281: Improper Preservation of Permissions
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-28161

## Description

If temporary "one-time" permissions, such as the ability to use the Camera, were granted to a document loaded using a file: URL, that permission persisted in that tab for all other documents loaded from a file: URL. This is potentially dangerous if the local files came from different sources, such as in a download directory. This vulnerability affects Firefox < 111.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox (en-US) | 111.0 | [Mozilla Firefox (en-US) 111.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-111.0.md) | Mar 16, 2023 |
| Windows apps | Mozilla Firefox ESR (en-US) | 115.4.0 | [Mozilla Firefox ESR (en-US) 115.4.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-115.4.0.md) | Oct 17, 2023 |
| Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 111.0+build2-0ubuntu0.18.04.1 | [firefox 111.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-111.0-build2-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | firefox Ubuntu 20.04 LTS (focal) | 111.0+build2-0ubuntu0.20.04.1 | [firefox 111.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-111.0-build2-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | firefox-geckodriver Ubuntu 18.04.6 LTS (bionic) | 111.0+build2-0ubuntu0.18.04.1 | [firefox-geckodriver 111.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-geckodriver-111.0-build2-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 111.0+build2-0ubuntu0.20.04.1 | [firefox-geckodriver 111.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-111.0-build2-0ubuntu0.20.04.1.md) | Mar 14, 2023 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 111.0+build2-0ubuntu0.18.04.1 | [firefox-mozsymbols 111.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-111.0-build2-0ubuntu0.18.04.1.md) | Mar 14, 2023 |
| Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 111.0+build2-0ubuntu0.20.04.1 | [firefox-mozsymbols 111.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-111.0-build2-0ubuntu0.20.04.1.md) | Mar 14, 2023 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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