Common Weakness Enumeration
CWE-1021
AllowedImproper Restriction of Rendered UI Layers or Frames
Abstraction: Base · Status: Incomplete
The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain.
471 vulnerabilities reference this CWE, most recent first.
CVE-2026-70608 (GCVE-0-2026-70608)
Vulnerability from cvelistv5 – Published: 2026-08-05 17:27 – Updated: 2026-08-05 18:46
VLAI
EPSS
VEX
Title
Electron: Sandboxed iframe can bypass the allow-popups restriction via the OpenURL navigation path
Summary
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 41.10.3, and 42.0.1, a sandboxed iframe without the allow-popups keyword could still open a new window or trigger setWindowOpenHandler with no user interaction because new-window navigations taking the OpenURL path did not apply the iframe sandbox popup restriction. Apps that embed untrusted content in sandboxed iframes and rely on the absence of allow-popups to prevent window creation are affected, while apps that deny window creation in setWindowOpenHandler or do not embed untrusted content in sandboxed iframes are not affected. This issue is fixed in 39.8.10, 41.10.3, and 42.0.1.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 18:14 UTC
CWE
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/electron/electron/security/adv… | x_refsource_CONFIRM |
| https://github.com/electron/electron/pull/51437 | x_refsource_MISC |
| https://github.com/electron/electron/pull/51438 | x_refsource_MISC |
| https://github.com/electron/electron/pull/51439 | x_refsource_MISC |
| https://github.com/electron/electron/commit/3ff23… | x_refsource_MISC |
| https://github.com/electron/electron/commit/57cbe… | x_refsource_MISC |
| https://github.com/electron/electron/commit/68cf8… | x_refsource_MISC |
| https://github.com/electron/electron/releases/tag… | x_refsource_MISC |
| https://github.com/electron/electron/releases/tag… | x_refsource_MISC |
| https://github.com/electron/electron/releases/tag… | x_refsource_MISC |
Impacted products
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CVE-2026-70600 (GCVE-0-2026-70600)
Vulnerability from cvelistv5 – Published: 2026-08-05 15:40 – Updated: 2026-08-06 14:21
VLAI
EPSS
VEX
Title
Electron: Cross-origin iframe can position native autofill popup
Summary
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, the native autofill popup could be positioned by a cross-origin iframe outside that iframe's bounds, over the embedding page's UI, enabling clickjacking or spoofing of trusted UI. Apps are only affected if they embed untrusted content in iframes within windows that also display trusted UI. Apps that do not embed untrusted third-party content are not affected. This issue is fixed in versions 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 14:21 UTC
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/electron/electron/security/adv… | x_refsource_CONFIRM |
Impacted products
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CVE-2026-70486 (GCVE-0-2026-70486)
Vulnerability from cvelistv5 – Published: 2026-08-04 20:01 – Updated: 2026-08-05 14:29
VLAI
EPSS
VEX
Title
Open WebUI: Same-origin XSS to account takeover via terminal file-preview iframe hardcoding allow-same-origin
Summary
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.0, the terminal file-preview serveUrl iframe branch always granted allow-same-origin together with allow-scripts for HTML files served from the application origin. Any authenticated user with access to a configured terminal server could cause script in a previewed file to run in the Open WebUI origin, read the victim's session token from localStorage, and take over the account, with possible server-side code execution if the victim was an admin or held workspace.functions. This issue is fixed in 0.11.0.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 13:51 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/open-webui/open-webui/security… | x_refsource_CONFIRM |
| https://github.com/open-webui/open-webui/pull/26907 | x_refsource_MISC |
| https://github.com/open-webui/open-webui/commit/6… | x_refsource_MISC |
| https://github.com/open-webui/open-webui/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-webui | open-webui |
Affected:
>= 0.9.0, < 0.11.0
|
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CVE-2026-58595 (GCVE-0-2026-58595)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:05 – Updated: 2026-08-24 21:00
VLAI
EPSS
VEX
Title
Microsoft Bing App for IOS Spoofing Vulnerability
Summary
Improper restriction of rendered ui layers or frames in Microsoft Bing App for IOS allows an unauthorized attacker to perform spoofing over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-16 15:39 UTC
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft Bing Search for iOS |
Affected:
1.0 , < 33.4.440529002
(custom)
cpe:2.3:a:microsoft:bing_search:*:*:*:*:*:ios:*:* |
Date Public
2026-07-14 14:00
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CVE-2026-47723 (GCVE-0-2026-47723)
Vulnerability from cvelistv5 – Published: 2026-07-23 20:17 – Updated: 2026-07-24 13:54
VLAI
EPSS
VEX
Title
nebula-mesh: Web UI and API responses lack security headers (CSP, X-Frame-Options, HSTS, etc.)
Summary
nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.1, none of the response paths in `internal/web/` or `internal/api/` set the standard browser-security headers. `grep` for `Content-Security-Policy`, `X-Frame-Options`, `Strict-Transport-Security`, `X-Content-Type-Options`, `Referrer-Policy` returns zero matches across the codebase. Version 0.3.1 fixes the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 13:53 UTC
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/forgekeep/nebula-mesh/security… | x_refsource_CONFIRM |
| https://github.com/forgekeep/nebula-mesh/commit/b… | x_refsource_MISC |
| https://github.com/forgekeep/nebula-mesh/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| juev | nebula-mesh |
Affected:
< 0.3.1
|
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CVE-2026-44762 (GCVE-0-2026-44762)
Vulnerability from cvelistv5 – Published: 2026-08-11 00:11 – Updated: 2026-08-11 14:33
VLAI
EPSS
VEX
Title
Security Misconfiguration in SAP Data Services Management Console
Summary
SAP Data Services Management Console allows an overly permissive Content Security Policy (CSP) configuration and lacks certain restrictive directives, which could enable an authenticated malicious user to leverage this weakness in combination with another vulnerability to inject and execute malicious scripts within the application's context. Successful exploitation may result in a low impact on confidentiality and integrity, with no impact on the availability of the application.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 13:25 UTC
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SAP_SE | SAP Data Services Management Console |
Affected:
SBOP_DS_MANAGEMENT_CONSOLE 4.3
Affected: 2025 |
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CVE-2026-44727 (GCVE-0-2026-44727)
Vulnerability from cvelistv5 – Published: 2026-06-22 19:56 – Updated: 2026-07-22 12:08
VLAI
EPSS
VEX
Title
Jupyter Server: Stored XSS in `NbconvertFileHandler` / `NbconvertPostHandler` via missing `sandbox` CSP
Summary
Jupyter Server is the backend for Jupyter web applications. Prior to 2.20, the nbconvert HTTP handlers in jupyter_server render user-authored notebook HTML under the Jupyter origin without a sandbox directive in their Content-Security-Policy. Combined with nbconvert.HTMLExporter's default non-sanitizing behavior, a notebook carrying an HTML payload in a display_data output triggers stored XSS with cookie access, full /api/* authority, and kernel RCE. This vulnerability is fixed in 2.20.
Severity
9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 12:15 UTC
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/jupyter-server/jupyter_server/… | x_refsource_CONFIRM |
| https://github.com/jupyter-server/jupyter_server/… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-44727 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2491516 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:43038 | vendor-advisoryx_refsource_REDHAT |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| jupyter-server | jupyter_server |
Affected:
< 2.20
|
|
| Red Hat | Red Hat Migration Toolkit for Applications 8.2 |
Unaffected:
1784109883 , < *
(rpm)
cpe:/a:redhat:migration_toolkit_applications:8.2::el9 |
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai
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CVE-2026-27511 (GCVE-0-2026-27511)
Vulnerability from cvelistv5 – Published: 2026-02-23 16:25 – Updated: 2026-05-11 23:11
VLAI
EPSS
VEX
Title
Tenda F3 Clickjacking in Web Management Interface
Summary
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, allowing attacker-controlled sites to embed administrative pages in an iframe and trick an authenticated administrator into unintended interactions that may result in unauthorized configuration changes.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-23 18:38 UTC
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.tendacn.com/product/F3 | product |
| https://www.vulncheck.com/advisories/tenda-f3-cli… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Shenzhen Tenda Technology Co., Ltd. | Tenda F3 |
Affected:
0 , ≤ 12.01.01.55_multi
(custom)
cpe:2.3:o:tenda:f3_firmware:*:*:*:*:*:*:*:* |
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CVE-2026-26000 (GCVE-0-2026-26000)
Vulnerability from cvelistv5 – Published: 2026-02-12 20:30 – Updated: 2026-02-12 20:54
VLAI
EPSS
VEX
Title
XWiki Platform affected by click-jacking through CSS injection in comments
Summary
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 transform the full wiki in a link area leading to a malicious page. This vulnerability is fixed in 17.9.0, 17.4.6, and 16.10.13.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-12 20:54 UTC
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/xwiki/xwiki-platform/security/… | x_refsource_CONFIRM |
| https://github.com/xwiki/xwiki-platform/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| xwiki | xwiki-platform |
Affected:
>= 17.5.0, < 17.9.0
Affected: >= 17.0.0-rc-1, < 17.4.6 Affected: < 16.10.13 |
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CVE-2026-24839 (GCVE-0-2026-24839)
Vulnerability from cvelistv5 – Published: 2026-01-28 00:01 – Updated: 2026-01-28 15:02
VLAI
EPSS
VEX
Title
Dokploy has a clickjacking vulnerability - Missing X-Frame-Options and CSP frame-ancestors headers
Summary
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 allows attackers to embed Dokploy pages in malicious iframes and trick authenticated users into performing unintended actions. Version 0.26.6 patches the issue.
Severity
4.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-28 15:01 UTC
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/Dokploy/dokploy/security/advis… | x_refsource_CONFIRM |
| https://github.com/Dokploy/dokploy/pull/3500 | x_refsource_MISC |
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Mitigation
Implementation
- The use of X-Frame-Options allows developers of web content to restrict the usage of their application within the form of overlays, frames, or iFrames. The developer can indicate from which domains can frame the content.
- The concept of X-Frame-Options is well documented, but implementation of this protection mechanism is in development to cover gaps. There is a need for allowing frames from multiple domains.
Mitigation
Implementation
- A developer can use a "frame-breaker" script in each page that should not be framed. This is very helpful for legacy browsers that do not support X-Frame-Options security feature previously mentioned.
- It is also important to note that this tactic has been circumvented or bypassed. Improper usage of frames can persist in the web application through nested frames. The "frame-breaking" script does not intuitively account for multiple nested frames that can be presented to the user.
Mitigation
Implementation
This defense-in-depth technique can be used to prevent the improper usage of frames in web applications. It prioritizes the valid sources of data to be loaded into the application through the usage of declarative policies. Based on which implementation of Content Security Policy is in use, the developer should use the "frame-ancestors" directive or the "frame-src" directive to mitigate this weakness. Both directives allow for the placement of restrictions when it comes to allowing embedded content.
Mitigation
Implementation
In addition to frames or iframes as previously mentioned, the web application is expected to place restrictions on whether it is allowed to be rendered within objects, embed, or applet elements.
CAPEC-103: Clickjacking
An adversary tricks a victim into unknowingly initiating some action in one system while interacting with the UI from a seemingly completely different, usually an adversary controlled or intended, system.
CAPEC-181: Flash File Overlay
An attacker creates a transparent overlay using flash in order to intercept user actions for the purpose of performing a clickjacking attack. In this technique, the Flash file provides a transparent overlay over HTML content. Because the Flash application is on top of the content, user actions, such as clicks, are caught by the Flash application rather than the underlying HTML. The action is then interpreted by the overlay to perform the actions the attacker wishes.
CAPEC-222: iFrame Overlay
In an iFrame overlay attack the victim is tricked into unknowingly initiating some action in one system while interacting with the UI from seemingly completely different system.
CAPEC-504: Task Impersonation
An adversary, through a previously installed malicious application, impersonates an expected or routine task in an attempt to steal sensitive information or leverage a user's privileges.
CAPEC-506: Tapjacking
An adversary, through a previously installed malicious application, displays an interface that misleads the user and convinces them to tap on an attacker desired location on the screen. This is often accomplished by overlaying one screen on top of another while giving the appearance of a single interface. There are two main techniques used to accomplish this. The first is to leverage transparent properties that allow taps on the screen to pass through the visible application to an application running in the background. The second is to strategically place a small object (e.g., a button or text field) on top of the visible screen and make it appear to be a part of the underlying application. In both cases, the user is convinced to tap on the screen but does not realize the application that they are interacting with.
CAPEC-587: Cross Frame Scripting (XFS)
This attack pattern combines malicious Javascript and a legitimate webpage loaded into a concealed iframe. The malicious Javascript is then able to interact with a legitimate webpage in a manner that is unknown to the user. This attack usually leverages some element of social engineering in that an attacker must convinces a user to visit a web page that the attacker controls.
CAPEC-654: Credential Prompt Impersonation
An adversary, through a previously installed malicious application, impersonates a credential prompt in an attempt to steal a user's credentials.