CVE-2022-31739

Summary

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%.<br>This bug only affects Firefox for Windows. Other operating systems are unaffected.. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

Affected Software

Weaknesses

• Attacker-influenced path traversal when saving downloaded files

ADP Enrichment

CVE Program Container

Additional References

• https://www.mozilla.org/security/advisories/mfsa2022-20/
• https://www.mozilla.org/security/advisories/mfsa2022-22/
• https://www.mozilla.org/security/advisories/mfsa2022-21/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1765049

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://www.mozilla.org/security/advisories/mfsa2022-20/
• https://www.mozilla.org/security/advisories/mfsa2022-22/
• https://www.mozilla.org/security/advisories/mfsa2022-21/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1765049

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