CWE-1021 386 CVEs MITRE definition ↗

CWE-1021: Improper Restriction of Rendered UI Layers or Frames

Overview

CWE-1021 (Improper Restriction of Rendered UI Layers or Frames) documents a weakness type used across vulnerability databases and security assessments. Use the sections below for definition, context, and mapped CVEs.

Security impact
Security impact: Depends on product and context; use CVE records, severity scores, and MITRE guidance to prioritize.

Description

The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain.

Applicable platforms

Kind Name Class Prevalence OS / CPE
language Not Language-Specific Undetermined
technology Not Technology-Specific Undetermined
technology Web Based Undetermined

Related CVEs in this database

These CVEs are mapped to this weakness in this database and kept for traceability and search.

CVE Published Summary
CVE-2026-28577 2026-06-01 In addWindow of WindowManagerService.java, there is a possible tapjacking issue due to a tapjacking/overlay attack. This could lead to local escalation of privilege with no additional execution privil…
CVE-2026-0061 2026-06-01 In multiple functions of WindowState.java, there is a possible way to trick a user into accepting a permission due to a tapjacking/overlay attack. This could lead to local escalation of privilege with…
CVE-2026-0036 2026-06-01 In startAnimation of StageCoordinator.java, there is a possible tapjacking issue due to a tapjacking/overlay attack. This could lead to local escalation of privilege with no additional execution privi…
CVE-2026-21785 2026-05-27 A misconfigured Content Security Policy (CSP) in HCL BigFix Remote Control Server WebUI (versions 10.1.0.0442 and earlier) fails to define directives without fallbacks, allowing attackers to bypass in…
CVE-2026-9396 2026-05-24 A security flaw has been discovered in Besen BS20 EV Charging Station up to 20260426. Affected by this vulnerability is an unknown functionality of the component Firmware Version Check. The manipulati…
CVE-2026-42502 2026-05-22 Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML befor…
CVE-2026-27136 2026-05-22 Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML befor…
CVE-2026-25681 2026-05-22 Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML befor…
CVE-2025-62316 2026-05-14 HCL AION is affected by a vulnerability where certain security-related HTTP response headers are not properly configured. Absence of these headers may reduce the effectiveness of browser-based securit…
CVE-2026-28971 2026-05-11 The issue was addressed with improved UI handling. This issue is fixed in Safari 26.5, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, visionOS 26.5. A malicious iframe may use another website’s download …
CVE-2026-8022 2026-05-06 Inappropriate implementation in MHTML in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who convinced a user to engage in specific UI gestures to leak cross-origin data via a crafted M…
CVE-2026-3254 2026-04-22 GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user to load unauthorized content into…
CVE-2026-2378 2026-03-20 ArcSearch for Android versions prior to 1.12.7 could display a different domain in the address bar than the content being shown, enabling address bar spoofing after user interaction via crafted web co…
CVE-2025-62328 2026-03-11 HCL Nomad server on Domino did not configure the frame-ancestors directive in the Content-Security-Policy header by default which could allow an attacker to obtain sensitive information via unspecifie…
CVE-2026-0007 2026-03-02 In writeToParcel of WindowInfo.cpp, there is a possible way to trick a user into accepting a permission due to a tapjacking/overlay attack. This could lead to local escalation of privilege with no add…
CVE-2025-58405 2026-03-02 The CGM CLININET application does not implement any mechanisms that prevent clickjacking attacks, neither HTTP security headers nor HTML-based frame‑busting protections were detected. As a result, an …
CVE-2026-27511 2026-02-23 Shenzhen Tenda F3 Wireless Router firmware V12.01.01.55_multi contains a clickjacking vulnerability in the web-based administrative interface. The interface does not set the X-Frame-Options header, al…
CVE-2026-26000 2026-02-12 XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Prior to 17.9.0, 17.4.6, and 16.10.13, it's possible using comments to inject CSS that would tr…
CVE-2026-20645 2026-02-11 An inconsistent user interface issue was addressed with improved state management. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3. An attacker with physical access to a …
CVE-2026-24839 2026-01-28 Dokploy is a free, self-hostable Platform as a Service (PaaS). In versions prior to 0.26.6, the Dokploy web interface is vulnerable to Clickjacking attacks due to missing frame-busting headers. This a…

Content submission

Name
CWE Content Team
Organization
MITRE
Date
2017-08-01
Version
2.12

Content modifications

Date Name Version Importance Comment
2019-06-20 CWE Content Team 3.3 updated Related_Attack_Patterns, Relationships
2020-02-24 CWE Content Team 4.0 updated Applicable_Platforms, Relationships
2020-06-25 CWE Content Team 4.1 updated Potential_Mitigations
2020-08-20 CWE Content Team 4.2 updated Related_Attack_Patterns
2021-10-28 CWE Content Team 4.6 updated Relationships
2023-01-31 CWE Content Team 4.10 updated Related_Attack_Patterns
2023-04-27 CWE Content Team 4.11 updated Detection_Factors, References, Relationships
2023-06-29 CWE Content Team 4.12 updated Mapping_Notes
2025-12-11 CWE Content Team 4.19 updated Applicable_Platforms, References, Relationships, Weakness_Ordinalities
2026-04-30 CWE Content Team 4.20 updated Common_Consequences, Description, Diagram, Potential_Mitigations
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