// For flags

CVE-2021-1801

webkitgtk: IFrame sandboxing policy violation

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Maliciously crafted web content may violate iframe sandboxing policy.

Este problema es abordado con una aplicación del sandbox de iframe mejorado. Este problema es corregido en macOS Big Sur versión 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS versión 7.3, tvOS versión 14.4, iOS versión 14.4 y iPadOS versión 14.4. Un contenido web diseñado maliciosamente puede violar la política de sandboxing de iframe.

A flaw was found in WebKitGTK and WPE WebKit in versions prior to 2.30.6. Maliciously crafted web content may violate the iframe sandboxing policy. The highest threat from this vulnerability is to data integrity.

An update that fixes 10 vulnerabilities is now available. This update for webkit2gtk3 fixes the following issues. Fixed the authentication request port when URL omits the port. Fixed iframe scrolling when main frame is scrolled in async scrolling mode. Stop using g_memdup. Show a warning message when overriding signal handler for threading suspension. Fixed the build on RISC-V with GCC 11. Fixed several crashes and rendering issues.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-08 CVE Reserved
  • 2021-02-02 CVE Published
  • 2024-08-03 CVE Updated
  • 2025-08-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-863: Incorrect Authorization
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apple
Search vendor "Apple"
 Ipad Os
Search vendor "Apple" for product "Ipad Os"
 < 14.4
Search vendor "Apple" for product "Ipad Os" and version " < 14.4"
-
Affected
Apple
Search vendor "Apple"
 Iphone Os
Search vendor "Apple" for product "Iphone Os"
 < 14.4
Search vendor "Apple" for product "Iphone Os" and version " < 14.4"
-
Affected
Apple
Search vendor "Apple"
 Macos
Search vendor "Apple" for product "Macos"
 >= 11.0.1 < 11.2
Search vendor "Apple" for product "Macos" and version " >= 11.0.1 < 11.2"
-
Affected
Apple
Search vendor "Apple"
 Tvos
Search vendor "Apple" for product "Tvos"
 < 14.4
Search vendor "Apple" for product "Tvos" and version " < 14.4"
-
Affected
Apple
Search vendor "Apple"
 Watchos
Search vendor "Apple" for product "Watchos"
 < 7.3
Search vendor "Apple" for product "Watchos" and version " < 7.3"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 32
Search vendor "Fedoraproject" for product "Fedora" and version "32"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 33
Search vendor "Fedoraproject" for product "Fedora" and version "33"
-
Affected
Webkitgtk
Search vendor "Webkitgtk"
 Webkitgtk
Search vendor "Webkitgtk" for product "Webkitgtk"
 < 2.30.6
Search vendor "Webkitgtk" for product "Webkitgtk" and version " < 2.30.6"
-
Affected