CVE-2022-34468

Mozilla: CSP sandbox header without `allow-scripts` can be bypassed via retargeted javascript: URI

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An iframe that was not permitted to run scripts could do so if the user clicked on a <code>javascript:</code> link. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Un iframe al que no se le permitía ejecutar scripts podría hacerlo si el usuario hacía clic en un enlace <code>javascript:</code>. Esta vulnerabilidad afecta a Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102 y Thunderbird < 91.11.

The Mozilla Foundation Security Advisory describes this flaw as: An iframe that was not permitted to run scripts could do so if the user clicked on a `javascript:` link.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.11 ESR. Issues addressed include bypass, integer overflow, and use-after-free vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

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

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-06-24 CVE Reserved
2022-06-28 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.mozilla.org/security/advisories/mfsa2022-24	2022-12-30
https://www.mozilla.org/security/advisories/mfsa2022-25	2022-12-30
https://www.mozilla.org/security/advisories/mfsa2022-26	2022-12-30
https://access.redhat.com/security/cve/CVE-2022-34468	2022-07-01
https://bugzilla.redhat.com/show_bug.cgi?id=2102163	2022-07-01

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"				< 102.0 Search vendor "Mozilla" for product "Firefox" and version " < 102.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 91.11 Search vendor "Mozilla" for product "Firefox Esr" and version " < 91.11"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 91.11 Search vendor "Mozilla" for product "Thunderbird" and version " < 91.11"		-		Affected