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CVE-2024-8383

Date: September 3, 2024

Firefox normally asks for confirmation before asking the operating system to find an application to handle a scheme that the browser does not support. It did not ask before doing so for the Usenet-related schemes news: and snews:. Since most operating systems don't have a trusted newsreader installed by default, an unscrupulous program that the user downloaded could register itself as a handler. The website that served the application download could then launch that application at will. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Firefox ESR < 115.15.

Language: JS

Severity Score

Related Resources (8)

https://bugzilla.mozilla.org/show_bug.cgi?id=1908496
https://www.mozilla.org/security/advisories/mfsa2024-39/
https://www.mozilla.org/security/advisories/mfsa2024-41/
https://www.mozilla.org/security/advisories/mfsa2024-40/
https://nvd.nist.gov/vuln/detail/CVE-2024-8383
https://www.mozilla.org/security/advisories/mfsa2024-44/
https://www.mozilla.org/security/advisories/mfsa2024-43/
https://www.mend.io/vulnerability-database/CVE-2024-8383

Severity Score

Weakness Type (CWE)

Initialization of a Resource with an Insecure Default

CWE-1188

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

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