CVE-2022-45418

Mozilla: Custom mouse cursor could have been drawn over browser UI

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

If a custom mouse cursor is specified in CSS, under certain circumstances the cursor could have been drawn over the browser UI, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Si se especifica un cursor de mouse personalizado en CSS, bajo ciertas circunstancias el cursor podría haberse dibujado sobre la interfaz de usuario del navegador, lo que podría generar confusión en el usuario o ataques de suplantación de identidad. Esta vulnerabilidad afecta a Firefox ESR < 102,5, Thunderbird < 102.5 y Firefox < 107.

The Mozilla Foundation Security Advisory describes this flaw as: If a custom mouse cursor is specified in CSS, under certain circumstances the cursor could have been drawn over the browser UI, resulting in potential user confusion or spoofing attacks.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 102.5.0 ESR. Issues addressed include bypass and use-after-free vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-11-14 CVE Reserved
2022-11-17 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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/mfsa2022-47	2023-01-04
https://www.mozilla.org/security/advisories/mfsa2022-48	2023-01-04
https://www.mozilla.org/security/advisories/mfsa2022-49	2023-01-04
https://access.redhat.com/security/cve/CVE-2022-45418	2022-12-13
https://bugzilla.redhat.com/show_bug.cgi?id=2143241	2022-12-13

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"				< 107.0 Search vendor "Mozilla" for product "Firefox" and version " < 107.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 102.5 Search vendor "Mozilla" for product "Firefox Esr" and version " < 102.5"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 102.5 Search vendor "Mozilla" for product "Thunderbird" and version " < 102.5"		-		Affected