CWE-939
Improper Authorization in Handler for Custom URL Scheme
Description
The product uses a handler for a custom URL scheme, but it does not properly restrict which actors can invoke the handler using the scheme.
Hierarchy (View 1000)
CVEs mapped to this weakness (27)
page 1 of 2| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-6445 | Hig | 0.57 | — | 0.00 | Jun 9, 2026 | A flaw exists in FlashArray Purity where insufficient filtering of certain data paths could expose sensitive information to an authenticated user with low privileges. | ||
| CVE-2024-33606 | Hig | 0.57 | 8.8 | 0.00 | Jun 11, 2024 | An attacker could retrieve sensitive files (medical images) as well as plant new medical images or overwrite existing medical images on a MicroDicom DICOM Viewer system. User interaction is required to exploit this vulnerability. | ||
| CVE-2026-53408 | Hig | 0.53 | 8.1 | 0.00 | Jun 12, 2026 | Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege via network access. | ||
| CVE-2026-53407 | Hig | 0.53 | 8.1 | 0.00 | Jun 12, 2026 | Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege via network access. | ||
| CVE-2026-1046 | Hig | 0.49 | 7.6 | 0.00 | Feb 16, 2026 | Mattermost Desktop App versions <=6.0 6.2.0 5.2.13.0 fail to validate help links which allows a malicious Mattermost server to execute arbitrary executables on a user’s system via the user clicking on certain items in the Help menu Mattermost Advisory ID: MMSA-2026-00577 | ||
| CVE-2026-35394 | Hig | 0.47 | 8.3 | 0.00 | Apr 6, 2026 | Mobile Next is an MCP server for mobile development and automation. Prior to 0.0.50, the mobile_open_url tool in mobile-mcp passes user-supplied URLs directly to Android's intent system without any scheme validation, allowing execution of arbitrary Android intents, including… | ||
| CVE-2021-31384 | Hig | 0.47 | 7.2 | 0.01 | Oct 19, 2021 | Due to a Missing Authorization weakness and Insufficient Granularity of Access Control in a specific device configuration, a vulnerability exists in Juniper Networks Junos OS on SRX Series whereby an attacker who attempts to access J-Web administrative interfaces can… | ||
| CVE-2026-33335 | Hig | 0.45 | 8.0 | 0.00 | Mar 24, 2026 | Vikunja is an open-source self-hosted task management platform. Starting in version 0.21.0 and prior to version 2.2.0, the Vikunja Desktop Electron wrapper passes URLs from `window.open()` calls directly to `shell.openExternal()` without any validation or protocol allowlisting.… | ||
| CVE-2026-3471 | Med | 0.42 | 6.5 | 0.00 | May 18, 2026 | Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in the Mattermost Desktop App which allows a malicious server owner to repeated crash the application via calling {{window.open('javascript:alert()');}}.… | ||
| CVE-2024-41918 | Med | 0.40 | 6.1 | 0.00 | Aug 29, 2024 | 'Rakuten Ichiba App' for Android 12.4.0 and earlier and 'Rakuten Ichiba App' for iOS 11.7.0 and earlier are vulnerable to improper authorization in handler for custom URL scheme. An arbitrary site may be displayed on the WebView of the product via Intent from another application… | ||
| CVE-2020-11000 | Med | 0.37 | 5.7 | 0.01 | Apr 8, 2020 | GreenBrowser before version 1.2 has a vulnerability where apps that rely on URL Parsing to verify that a given URL is pointing to a trust server may be susceptible to many different ways to get URL parsing and verification wrong, which allows an attacker to circumvent the access… | ||
| CVE-2026-26123 | Med | 0.36 | 5.5 | 0.01 | Mar 10, 2026 | Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally. | ||
| CVE-2023-43582 | Med | 0.36 | 5.5 | 0.01 | Nov 15, 2023 | Improper authorization in some Zoom clients may allow an authorized user to conduct an escalation of privilege via network access. | ||
| CVE-2022-20736 | Med | 0.35 | 5.3 | 0.01 | Jun 15, 2022 | A vulnerability in the web-based management interface of Cisco AppDynamics Controller Software could allow an unauthenticated, remote attacker to access a configuration file and the login page for an administrative console that they would not normally have authorization to… | ||
| CVE-2026-21075 | Med | 0.34 | — | 0.00 | Aug 10, 2026 | Improper authorization in handler for custom URL scheme in My Galaxy prior to version 6.3 allows remote attackers to access sensitive information. | ||
| CVE-2026-12190 | Med | 0.34 | 5.3 | 0.00 | Jun 14, 2026 | A vulnerability has been found in Genspark AI Workspace App 2.8.4 on Android. This vulnerability affects unknown code of the component ai.mainfunc.genspark. The manipulation leads to improper authorization in handler for custom url scheme. The attack can only be performed from a… | ||
| CVE-2026-12189 | Med | 0.34 | 5.3 | 0.00 | Jun 14, 2026 | A flaw has been found in Moovit Bus & Public Transit App 1.18 on Android. This affects an unknown part of the component com.tranzmate. Executing a manipulation can lead to improper authorization in handler for custom url scheme. The attack can only be executed locally. The… | ||
| CVE-2026-21062 | Med | 0.31 | — | 0.00 | Aug 10, 2026 | Authorization bypass in SemClipboardService prior to SMR Aug-2026 Release 1 allows local attackers to access clipboard data. | ||
| CVE-2025-41408 | Med | 0.28 | 4.3 | 0.00 | Sep 5, 2025 | Improper authorization in handler for custom URL scheme issue in "Yahoo! Shopping" App for Android versions prior to 14.15.0 allows a remote unauthenticated attacker may lead a user to access an arbitrary website on the vulnerable App. As a result, the user may become a victim… | ||
| CVE-2025-5020 | Med | 0.28 | 4.3 | 0.00 | May 21, 2025 | Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client. This vulnerability was fixed in Firefox for iOS 139. |
- risk 0.57cvss —epss 0.00
A flaw exists in FlashArray Purity where insufficient filtering of certain data paths could expose sensitive information to an authenticated user with low privileges.
- risk 0.57cvss 8.8epss 0.00
An attacker could retrieve sensitive files (medical images) as well as plant new medical images or overwrite existing medical images on a MicroDicom DICOM Viewer system. User interaction is required to exploit this vulnerability.
- risk 0.53cvss 8.1epss 0.00
Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege via network access.
- risk 0.53cvss 8.1epss 0.00
Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege via network access.
- risk 0.49cvss 7.6epss 0.00
Mattermost Desktop App versions <=6.0 6.2.0 5.2.13.0 fail to validate help links which allows a malicious Mattermost server to execute arbitrary executables on a user’s system via the user clicking on certain items in the Help menu Mattermost Advisory ID: MMSA-2026-00577
- risk 0.47cvss 8.3epss 0.00
Mobile Next is an MCP server for mobile development and automation. Prior to 0.0.50, the mobile_open_url tool in mobile-mcp passes user-supplied URLs directly to Android's intent system without any scheme validation, allowing execution of arbitrary Android intents, including…
- risk 0.47cvss 7.2epss 0.01
Due to a Missing Authorization weakness and Insufficient Granularity of Access Control in a specific device configuration, a vulnerability exists in Juniper Networks Junos OS on SRX Series whereby an attacker who attempts to access J-Web administrative interfaces can…
- risk 0.45cvss 8.0epss 0.00
Vikunja is an open-source self-hosted task management platform. Starting in version 0.21.0 and prior to version 2.2.0, the Vikunja Desktop Electron wrapper passes URLs from `window.open()` calls directly to `shell.openExternal()` without any validation or protocol allowlisting.…
- risk 0.42cvss 6.5epss 0.00
Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in the Mattermost Desktop App which allows a malicious server owner to repeated crash the application via calling {{window.open('javascript:alert()');}}.…
- risk 0.40cvss 6.1epss 0.00
'Rakuten Ichiba App' for Android 12.4.0 and earlier and 'Rakuten Ichiba App' for iOS 11.7.0 and earlier are vulnerable to improper authorization in handler for custom URL scheme. An arbitrary site may be displayed on the WebView of the product via Intent from another application…
- risk 0.37cvss 5.7epss 0.01
GreenBrowser before version 1.2 has a vulnerability where apps that rely on URL Parsing to verify that a given URL is pointing to a trust server may be susceptible to many different ways to get URL parsing and verification wrong, which allows an attacker to circumvent the access…
- risk 0.36cvss 5.5epss 0.01
Cwe is not in rca categories in Microsoft Authenticator allows an unauthorized attacker to disclose information locally.
- risk 0.36cvss 5.5epss 0.01
Improper authorization in some Zoom clients may allow an authorized user to conduct an escalation of privilege via network access.
- risk 0.35cvss 5.3epss 0.01
A vulnerability in the web-based management interface of Cisco AppDynamics Controller Software could allow an unauthenticated, remote attacker to access a configuration file and the login page for an administrative console that they would not normally have authorization to…
- risk 0.34cvss —epss 0.00
Improper authorization in handler for custom URL scheme in My Galaxy prior to version 6.3 allows remote attackers to access sensitive information.
- risk 0.34cvss 5.3epss 0.00
A vulnerability has been found in Genspark AI Workspace App 2.8.4 on Android. This vulnerability affects unknown code of the component ai.mainfunc.genspark. The manipulation leads to improper authorization in handler for custom url scheme. The attack can only be performed from a…
- risk 0.34cvss 5.3epss 0.00
A flaw has been found in Moovit Bus & Public Transit App 1.18 on Android. This affects an unknown part of the component com.tranzmate. Executing a manipulation can lead to improper authorization in handler for custom url scheme. The attack can only be executed locally. The…
- risk 0.31cvss —epss 0.00
Authorization bypass in SemClipboardService prior to SMR Aug-2026 Release 1 allows local attackers to access clipboard data.
- risk 0.28cvss 4.3epss 0.00
Improper authorization in handler for custom URL scheme issue in "Yahoo! Shopping" App for Android versions prior to 14.15.0 allows a remote unauthenticated attacker may lead a user to access an arbitrary website on the vulnerable App. As a result, the user may become a victim…
- risk 0.28cvss 4.3epss 0.00
Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client. This vulnerability was fixed in Firefox for iOS 139.