Firefox Vulnerability Affects Internal Browser Event Interfaces
CVE-2024-8382

8.8HIGH

Key Information:

Vendor

Mozilla
Status
Firefox
Firefox Esr
Thunderbird
Vendor
CVE Published:
3 September 2024

What is CVE-2024-8382?

A vulnerability exists in Mozilla's Firefox and Thunderbird products where internal browser event interfaces are exposed to web content due to privileged EventHandler listener callbacks. While web content cannot leverage these interfaces with elevated privileges, their exposure signals the usage of certain browser features, such as the Dev Tools console. This scenario can lead to information leakage and may indicate underlying security risks. Users of affected versions are encouraged to update to the latest releases to mitigate potential threats.

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Affected Version(s)

Firefox < 130

Firefox ESR < 128.2

Firefox ESR < 115.15

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1906744
https://www.mozilla.org/security/advisories/mfsa2024-39/
https://www.mozilla.org/security/advisories/mfsa2024-40/

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Gregory Pappas
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