Mozilla Firefox Vulnerability: Tricked into Saving Files with Disallowed Extensions
CVE-2024-5692

6.5MEDIUM

Key Information:

Vendor

Mozilla
Status
Firefox
Firefox Esr
Thunderbird
Vendor
CVE Published:
11 June 2024

What is CVE-2024-5692?

On Windows 10, when using the 'Save As' functionality, an attacker could have tricked the browser into saving the file with a disallowed extension such as .url by including an invalid character in the extension. Note: This issue only affected Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.

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Affected Version(s)

Firefox < 127

Firefox ESR < 115.12

Thunderbird < 115.12

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1891234
https://www.mozilla.org/security/advisories/mfsa2024-25/
https://www.mozilla.org/security/advisories/mfsa2024-26/

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Raphael Shaniyazov
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