Cross-Site Navigation Vulnerability in Firefox and Thunderbird
CVE-2024-6611

9.8CRITICAL

Key Information:

Vendor

Mozilla
Status
Firefox
Thunderbird
Vendor
CVE Published:
9 July 2024

What is CVE-2024-6611?

A identified security issue in Firefox and Thunderbird arises from the handling of nested iframes, which may unintentionally expose SameSite cookies set to either Strict or Lax. This vulnerability poses risks by enabling cross-site navigation that can facilitate unauthorized access to sensitive information. Users running affected versions of Firefox and Thunderbird are advised to update to the latest versions to mitigate these risks.

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Affected Version(s)

Firefox < 128

Thunderbird < 128

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1844827
https://www.mozilla.org/security/advisories/mfsa2024-29/
https://www.mozilla.org/security/advisories/mfsa2024-32/

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

Credit

Pedro Bernardo
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