CVE-2022-31739: Path Traversal
First published: Tue May 31 2022(Updated: )
When downloading files on Windows, the % character was not escaped, which could have lead to a download incorrectly being saved to attacker-influenced paths that used variables such as %HOMEPATH% or %APPDATA%.This bug only affects Firefox for Windows. Other operating systems are unaffected.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Firefox | <101 | |
| Firefox ESR | <91.10 | |
| Thunderbird | <91.10 | |
| Microsoft Windows | ||
| Thunderbird | <91.10 | 91.10 |
| Firefox | <101 | 101 |
| Firefox ESR | <91.10 | 91.10 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1765049
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-20/
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-21/
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-22/
- https://www.mozilla.org/security/advisories/mfsa2022-20/
- https://www.mozilla.org/security/advisories/mfsa2022-21/
- https://www.mozilla.org/security/advisories/mfsa2022-22/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2022-31739?
CVE-2022-31739 is considered a moderate severity vulnerability.
How do I fix CVE-2022-31739?
To fix CVE-2022-31739, update Firefox, Firefox ESR, or Thunderbird to the latest version beyond 101 or 91.10 respectively.
Who is affected by CVE-2022-31739?
CVE-2022-31739 affects Firefox, Firefox ESR, and Thunderbird on Windows only.
What type of vulnerability is CVE-2022-31739?
CVE-2022-31739 is a file path manipulation vulnerability that could allow files to be downloaded to attacker-controlled paths.
Can CVE-2022-31739 affect other operating systems?
No, CVE-2022-31739 specifically affects only Windows versions of Firefox, Firefox ESR, and Thunderbird.
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