Weakness (CWE)
CWE-942: Permissive Cross-domain Security Policy with Untrusted Domains
The product uses a web-client protection
mechanism such as a Content Security Policy (CSP) or
cross-domain policy file, but the policy includes untrusted
domains with which the web client is allowed to
communicate.
How to prevent it (3 mitigations)
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Architecture and Design, Operation
Define a restrictive Content Security Policy [REF-1486] or cross-domain policy file.
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Architecture and Design, Operation
Avoid using wildcards in the CSP / cross-domain policy file. Any domain matching the wildcard expression will be implicitly trusted, and can perform two-way interaction with the target server.
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Architecture and Design, Operation
For Flash, modify crossdomain.xml to use meta-policy options such as 'master-only' or 'none' to reduce the possibility of an attacker planting extraneous cross-domain policy files on a server.
Source: MITRE CWE-942
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High 7.1
Tenda W30E V2 Permissive CORS Allows Cross-origin Data Access
Shenzhen Tenda W30E V2 firmware versions up to and including V16.01.0.19(5037) implement an insecure Cross-Origin Resource Sharing (CORS) policy on authenticated administrative endpoints. The device sets Access-Control-Allow-Origin: * in combination with Acce…
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High 8.8
OpenCode's Unauthenticated HTTP Server Allows Arbitrary Command Execution
OpenCode is an open source AI coding agent. Prior to 1.0.216, OpenCode automatically starts an unauthenticated HTTP server that allows any local process (or any website via permissive CORS) to execute arbitrary shell commands with the user's privileges. This …
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High 8.1
Same-origin policy bypass in the DOM: Notifications component
Same-origin policy bypass in the DOM: Notifications component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.
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High 8.1
Same-origin policy bypass in the DOM: Workers component
Same-origin policy bypass in the DOM: Workers component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.
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High 8.1
The issue was addressed with improved checks. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe…
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High 8.1
claude-code-router CORS. misconfiguration
claude-code-router is a powerful tool to route Claude Code requests to different models and customize any request. Due to improper Cross-Origin Resource Sharing (CORS) configuration, there is a risk that user API Keys or equivalent credentials may be exposed …
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High 7.1
Omnissa UAG contains a Cross-Origin Resource Sharing (CORS) bypass vulnerability. A malicious actor with network access…
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High 8.8
Improper Access Control In DestinyECM
Permissive Cross-domain Policy with Untrusted Domains vulnerability in local API server of DestinyECM solution(versions described below) which is developed and maintained by Cyberdigm may allow Cross-Site Request Forgery (CSRF) attack, which probabilistically…
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High 8.7
Bruno ignores Safe-Mode in Asserts expressions
Bruno is an open source IDE for exploring and testing APIs. A bug in the assertion runtime caused assert expressions to run in Developer Mode, even if Safe Mode was selected. The bug resulted in the sandbox settings to be ignored for the particular case where…
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High 8.7
PlexRipper allows API leak due to open CORS policy
PlexRipper is a cross-platform media downloader for Plex. PlexRipper’s open CORS policy allows attackers to gain sensitive information from PlexRipper by getting the user to access the attacker’s domain. This allows an attacking website to access the /api/Ple…
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High 8.1
GHSL-2024-035: Casdoor CORS misconfiguration
Casdoor is a UI-first Identity and Access Management (IAM) / Single-Sign-On (SSO) platform. In Casdoor 1.577.0 and earlier, a logic vulnerability exists in the beego filter CorsFilter that allows any website to make cross domain requests to Casdoor as the log…
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High 8.1
GHSL-2024-034: memos CORS Misconfiguration in server.go
memos is a privacy-first, lightweight note-taking service. A CORS misconfiguration exists in memos 0.20.1 and earlier where an arbitrary origin is reflected with Access-Control-Allow-Credentials set to true. This may allow an attacking website to make a cross…
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High 7.5
SCG Policy Manager, all versions, contains an overly permissive Cross-Origin Resource Policy (CORP) vulnerability. A re…
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High 7.5
Softing edgeAggregator Permissive Cross-domain Policy with Untrusted Domains Remote Code Execution Vulnerability
Softing edgeAggregator Permissive Cross-domain Policy with Untrusted Domains Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Softing edgeAggregator. Authentication is requi…
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High 7.2
Inductive Automation Ignition OPC UA Quick Client Permissive Cross-domain Policy Remote Code Execution Vulnerability
Inductive Automation Ignition OPC UA Quick Client Permissive Cross-domain Policy Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. Although aut…
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High 7.1
A vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All vers…
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High 8.0
A vulnerability has been identified in SIMATIC PCS neo (All versions < V4.1). When accessing the Information Server fro…
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High 8.1
Media CP Media Control Panel – Information Disclosure
Media CP Media Control Panel latest version. A Permissive Flash Cross-domain Policy may allow information disclosure.
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High 7.5
Last Yard 22.09.8-1 is vulnerable to Cross-origin resource sharing (CORS).
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High 8.8
Remote code execution in Eclipse Theia
In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews…
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High 7.4
It was found that the Syndesis configuration for Cross-Origin Resource Sharing was set to allow all origins. An attacke…