CVE-2022-40959

Mozilla: Bypassing FeaturePolicy restrictions on transient pages

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

During iframe navigation, certain pages did not have their FeaturePolicy fully initialized leading to a bypass that leaked device permissions into untrusted subdocuments. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Durante la navegación por iframe, ciertas páginas no tenían su FeaturePolicy completamente inicializada, lo que provocó una omisión que filtró permisos del dispositivo a subdocumentos que no eran de confianza. Esta vulnerabilidad afecta a Firefox ESR < 102.3, Thunderbird < 102.3 y Firefox < 105.

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes the issue that certain pages did not have their FeaturePolicy fully initialized during iframe navigation, leading to a bypass that leaked device permissions into untrusted subdocuments.

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, bypass Content Security Policy or other security restrictions, or execute arbitrary code. These issues only affect Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-09-19 CVE Reserved
2022-09-27 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-922: Insecure Storage of Sensitive Information
CWE-1021: Improper Restriction of Rendered UI Layers or Frames

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.mozilla.org/security/advisories/mfsa2022-40	2023-01-04
https://www.mozilla.org/security/advisories/mfsa2022-41	2023-01-04
https://www.mozilla.org/security/advisories/mfsa2022-42	2023-01-04
https://access.redhat.com/security/cve/CVE-2022-40959	2022-09-26
https://bugzilla.redhat.com/show_bug.cgi?id=2128792	2022-09-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				< 105.0 Search vendor "Mozilla" for product "Firefox" and version " < 105.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 102.3 Search vendor "Mozilla" for product "Firefox Esr" and version " < 102.3"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 102.3 Search vendor "Mozilla" for product "Thunderbird" and version " < 102.3"		-		Affected