Prototype Pollution Vulnerability in Firefox ESR and Thunderbird by Mozilla
CVE-2022-1529

8.8HIGH

Key Information:

Vendor
Mozilla
Status
Firefox Esr
Firefox
Firefox For Android
Thunderbird
Vendor
CVE Published:
22 December 2022

Summary

A vulnerability exists in Mozilla's Firefox ESR, Firefox for Android, and Thunderbird products that allows an attacker to send specially crafted messages to the parent process. This can lead to double-indexing within a JavaScript object, resulting in prototype pollution. Consequently, this may enable attackers to execute arbitrary JavaScript code in the context of the privileged parent process, posing significant security risks to users.

Affected Version(s)

Firefox < 100.0.2

Firefox ESR < 91.9.1

Firefox for Android < 100.3.0

References

https://www.mozilla.org/security/advisories/mfsa2022-19/
https://bugzilla.mozilla.org/show_bug.cgi?id=1770048

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

.