# CVE-2022-34482: Mozilla Firefox and 2 others: Unrestricted Upload of File with Dangerous Type

CVE-2022-34482 is fixed in 5 products on 2 platforms, first by Mozilla Firefox ESR (en-US) 102.0, released June 23, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-34482
- Priority: High
- CVSS: 8.8 (Medium)
- EPSS: 0.0074
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 4, 2022
- Weakness: CWE-434: Unrestricted Upload of File with Dangerous Type
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-34482

## Description

An attacker who could have convinced a user to drag and drop an image to a filesystem could have manipulated the resulting filename to contain an executable extension, and by extension potentially tricked the user into executing malicious code. While very similar, this is a separate issue from CVE-2022-34483. This vulnerability affects Firefox < 102.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox (en-US) | 102.0 | [Mozilla Firefox (en-US) 102.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-102.0.md) | Jun 27, 2022 |
| Windows apps | Mozilla Firefox ESR (en-US) | 102.0 | [Mozilla Firefox ESR (en-US) 102.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-102.0.md) | Jun 23, 2022 |
| Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 102.0+build2-0ubuntu0.18.04.1 | [firefox 102.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-102.0-build2-0ubuntu0.18.04.1.md) | Jul 4, 2022 |
| Linux | firefox Ubuntu 20.04 LTS (focal) | 102.0+build2-0ubuntu0.20.04.1 | [firefox 102.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-102.0-build2-0ubuntu0.20.04.1.md) | Jul 4, 2022 |
| Linux | firefox-geckodriver Ubuntu 18.04.6 LTS (bionic) | 102.0+build2-0ubuntu0.18.04.1 | [firefox-geckodriver 102.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-geckodriver-102.0-build2-0ubuntu0.18.04.1.md) | Jul 4, 2022 |
| Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 102.0+build2-0ubuntu0.20.04.1 | [firefox-geckodriver 102.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-102.0-build2-0ubuntu0.20.04.1.md) | Jul 4, 2022 |
| Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 102.0+build2-0ubuntu0.18.04.1 | [firefox-mozsymbols 102.0+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-102.0-build2-0ubuntu0.18.04.1.md) | Jul 4, 2022 |
| Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 102.0+build2-0ubuntu0.20.04.1 | [firefox-mozsymbols 102.0+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-102.0-build2-0ubuntu0.20.04.1.md) | Jul 4, 2022 |

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Data as of 2026-11-08T19:12:23Z 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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