Common Weakness Enumeration
CWE-940
AllowedImproper Verification of Source of a Communication Channel
Abstraction: Base · Status: Incomplete
The product establishes a communication channel to handle an incoming request that has been initiated by an actor, but it does not properly verify that the request is coming from the expected origin.
112 vulnerabilities reference this CWE, most recent first.
CVE-2026-102511 (GCVE-0-2026-102511)
Vulnerability from cvelistv5 – Published: 2026-09-30 08:03 – Updated: 2026-09-30 16:43
VLAI
EPSS
VEX
Title
Apache PLC4X, Apache PLC4X, Apache PLC4X, Apache PLC4X: ADS discovery accepts spoofed responses and derives the connection target from them
Summary
Improper Verification of Source of a Communication Channel in the ADS discovery of the Go implementation of Apache PLC4X (PLC4Go) allows an attacker able to send UDP datagrams to the discovering host to redirect subsequent connections to an arbitrary, attacker-chosen address. The discovery result's connection
address was derived from the AmsNetId claimed in the response body rather than from the datagram's actual source address. One spoofed discovery response can therefore insert an inventory entry pointing at any host, including hosts outside the local network, and an application that connects to discovered devices
will open its ADS session, including any configured route credentials, to that host.
Additionally, discovery listeners in both implementations can be disabled by a single malformed datagram:
- In PLC4Go ADS discovery, a short version block causes a panic that ends the listener for the rest of the discovery call, so legitimate devices answering afterwards are not reported.
- In PLC4J, the ADS and EtherNet/IP discoverers stop on an unhandled exception from a malformed response.
- The PLC4J Modbus discoverer can be made to spin indefinitely, consuming a CPU core, by a scanned host that sends a partial response.
Exploitation requires the application to invoke the discovery API, which is opt-in, and for the connection redirect, to act on the discovered items.
This issue affects Apache PLC4X: PLC4Go from 0.11.0 before 1.0.0; PLC4J ADS and Modbus drivers from 0.10.0 before 1.0.0; PLC4J EtherNet/IP driver from 0.11.0 before 1.0.0. PLC4Go is consumed as the Go module github.com/apache/plc4x/plc4go; versions refer to the corresponding Apache PLC4X releases.
Users are recommended to upgrade to version 1.0.0, which fixes the issue. Version 1.0.0 derives the connection address from the datagram's source address and logs a warning when the claimed AmsNetId disagrees with it.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 16:43 UTC
CWE
Assigner
References
2 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache PLC4X |
Affected:
0.11.0 , < 1.0.0
(semver)
Unaffected: 1.0.0 (semver) |
|
| Apache Software Foundation | Apache PLC4X |
Affected:
0.10.0 , < 1.0.0
(semver)
Unaffected: 1.0.0 (semver) |
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CVE-2026-102117 (GCVE-0-2026-102117)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:19 – Updated: 2026-10-01 13:37
VLAI
EPSS
VEX
Title
Kiteworks Core Remote Code Execution
Summary
On deployments where the remote-support capability is licensed and enabled, an authenticated System Administrator who also possessed the key protecting the submitted data could redirect the underlying system's outbound support connection to a destination of their choosing. That destination could then have operating-system commands executed on the node and receive their output, potentially resulting in remote code execution with the privileges of a local service account.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:27 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
Date Public
2026-09-30 00:00
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CVE-2026-101897 (GCVE-0-2026-101897)
Vulnerability from cvelistv5 – Published: 2026-10-14 15:03 – Updated: 2026-10-14 15:03
VLAI
EPSS
VEX
Title
Angular DevTools (Local DoS)
Summary
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Severity
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/angular/angular/security/advis… | x_refsource_CONFIRM |
| https://github.com/angular/angular/pull/70623 | x_refsource_MISC |
| https://github.com/angular/angular/commit/7c05359… | x_refsource_MISC |
| https://github.com/angular/angular/commit/cf492e8… | x_refsource_MISC |
| https://github.com/angular/angular/commit/e02c4d8… | x_refsource_MISC |
Impacted products
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CVE-2026-94590 (GCVE-0-2026-94590)
Vulnerability from cvelistv5 – Published: 2026-10-10 18:45 – Updated: 2026-10-11 12:13 X_Open Source
VLAI
EPSS
VEX
Title
WordPress Sell Downloads plugin <= 1.2.3 - Broken Access Control vulnerability
Summary
Improper Verification of Source of a Communication Channel vulnerability in CodePeople2 Sell Downloads sell-downloads allows Exploitation of Trusted Credentials.This issue affects Sell Downloads: from n/a through 1.2.3.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-11 12:02 UTC
CWE
- CWE-940 - Improper Verification of Source of a Communication Channel
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CodePeople2 | Sell Downloads |
Affected:
0 , ≤ 1.2.3
(custom)
|
Date Public
2026-10-08 10:38
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CVE-2026-89178 (GCVE-0-2026-89178)
Vulnerability from cvelistv5 – Published: 2026-09-11 07:36 – Updated: 2026-09-11 15:31
VLAI
EPSS
VEX
Title
Howyar｜WeenyGenius - Origin Validation Error
Summary
WeenyGenius, a computer lab management system by Howyar Technologies, has an Origin Validation Error vulnerability. Unauthenticated attackers on the same network can spoof the teacher workstation and send broadcast packets, causing student computers to attempt to establish a connection with the attacker.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 15:30 UTC
CWE
- CWE-940 - Improper Verification of Source of a Communication Channel
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.twcert.org.tw/tw/cp-132-11201-658c0-1.html | third-party-advisory |
| https://www.twcert.org.tw/en/cp-139-11200-ffc3c-2.html | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Howyar | WeenyGenius |
Affected:
0 , ≤ 12.2.031
(custom)
|
Date Public
2026-09-11 07:36
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CVE-2026-87705 (GCVE-0-2026-87705)
Vulnerability from cvelistv5 – Published: 2026-10-13 19:01 – Updated: 2026-10-15 22:28
VLAI
EPSS
VEX
Title
Windows Hyper-V Security Feature Bypass Vulnerability
Summary
Improper verification of source of a communication channel in Windows Hyper-V allows an unauthorized attacker to bypass a security feature over an adjacent network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 20:00 UTC
CWE
- CWE-940 - Improper Verification of Source of a Communication Channel
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7807
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19044.7807
(custom)
|
|
| Microsoft | Windows 11 version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7652
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7652
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.9711
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.9711
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.3231
(custom)
|
|
| Microsoft | Windows 11 Version 26H2 |
Affected:
10.0.26300.0 , < 10.0.26300.9711
(custom)
|
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.9200.0 , < 6.2.9200.26434
(custom)
|
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.9600.0 , < 6.3.9600.23470
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9612
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5761
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
Date Public
2026-10-13 14:00
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CVE-2026-85125 (GCVE-0-2026-85125)
Vulnerability from cvelistv5 – Published: 2026-09-14 06:46 – Updated: 2026-09-14 19:35
VLAI
EPSS
VEX
Summary
The Android application "YAMAP -Social Trekking GPS App" contains an improper access control vulnerability in its WebView implementation. The in-app browser may cause information leakage from the app or redirect users to unintended websites.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 19:35 UTC
CWE
- CWE-940 - Improper Verification of Source of a Communication Channel
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| YAMAP INC. | YAMAP -Social Trekking GPS App |
Affected:
0 , ≤ 17.1.0
(semver)
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CVE-2026-85085 (GCVE-0-2026-85085)
Vulnerability from cvelistv5 – Published: 2026-09-04 06:00 – Updated: 2026-09-04 18:25
VLAI
EPSS
VEX
Summary
The Canva Android App before 2.376.0 allowed an external origin to be loaded in a privileged WebView. A threat actor who controls the page loaded by the user is able to communicate with Canva using the user’s session.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 17:09 UTC
CWE
- CWE-940 - Improper verification of source of a communication channel
Assigner
References
1 reference
Impacted products
Date Public
2026-09-04 06:00
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CVE-2026-78685 (GCVE-0-2026-78685)
Vulnerability from cvelistv5 – Published: 2026-08-25 02:05 – Updated: 2026-08-25 15:23
VLAI
EPSS
VEX
Title
Le-yan｜Medical Practice Management System - Remote Code Execution
Summary
Medical Practice Management System developed by Le-yan has a Remote Code Execution vulnerability. Unauthenticated remote attackers can execute arbitrary OS commamnds via a crafted HTML page.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 15:22 UTC
CWE
- CWE-940 - Improper Verification of Source of a Communication Channel
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.twcert.org.tw/tw/cp-132-11127-cda76-1.html | third-party-advisory |
| https://www.twcert.org.tw/en/cp-139-11128-8bd30-2.html | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Le-yan | Medical Practice Management System |
Affected:
2.4.2.8 , ≤ 2.5.1.9
(custom)
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CVE-2026-73419 (GCVE-0-2026-73419)
Vulnerability from cvelistv5 – Published: 2026-08-12 20:23 – Updated: 2026-08-13 15:32
VLAI
EPSS
VEX
Title
NextAuth.js: OAuth state, nonce, and PKCE check cookies are not bound to the provider that created them
Summary
NextAuth.js provides authentication for Next.js. Prior to@auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32, Auth.js stores the OAuth/OIDC anti-CSRF checks state, nonce, and the PKCE verifier in global cookies that are not bound to the provider that created them. On callback, a check value minted during a sign-in started with one provider can satisfy the callback for a different provider because the stored cookie is not verified against the callback provider's identity, including the provider ID, issuer, client ID, or redirect URI. In a multi-provider application that permits account linking while logged in, when one provider's authorization request is observable and a target provider callback can be satisfied without a PKCE verifier, an attacker can lure a victim into starting a legitimate same-origin flow and link the attacker's target-provider account to the victim's Auth.js user. The linked provider grants the attacker persistent sign-in to the victim's account, while cross-site request forgery alone is insufficient. This issue is fixed in @auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32.
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 15:32 UTC
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/nextauthjs/next-auth/security/… | x_refsource_CONFIRM |
| https://github.com/nextauthjs/next-auth/pull/13469 | x_refsource_MISC |
| https://github.com/nextauthjs/next-auth/commit/5b… | x_refsource_MISC |
| https://github.com/nextauthjs/next-auth/commit/9f… | x_refsource_MISC |
| https://github.com/nextauthjs/next-auth/releases/… | x_refsource_MISC |
| https://github.com/nextauthjs/next-auth/releases/… | x_refsource_MISC |
| https://github.com/nextauthjs/next-auth/releases/… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| nextauthjs | next-auth |
Affected:
< 4.24.15
Affected: >= 5.0.0-beta.4, < 5.0.0-beta.32 |
|
| @auth | core |
Affected:
< 0.41.3
|
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Mitigation
Architecture and Design
- Use a mechanism that can validate the identity of the source, such as a certificate, and validate the integrity of data to ensure that it cannot be modified in transit using an Adversary-in-the-Middle (AITM) attack.
- When designing functionality of actions in the URL scheme, consider whether the action should be accessible to all mobile applications, or if an allowlist of applications to interface with is appropriate.
CAPEC-500: WebView Injection
An adversary, through a previously installed malicious application, injects code into the context of a web page displayed by a WebView component. Through the injected code, an adversary is able to manipulate the DOM tree and cookies of the page, expose sensitive information, and can launch attacks against the web application from within the web page.
CAPEC-594: Traffic Injection
An adversary injects traffic into the target's network connection. The adversary is therefore able to degrade or disrupt the connection, and potentially modify the content. This is not a flooding attack, as the adversary is not focusing on exhausting resources. Instead, the adversary is crafting a specific input to affect the system in a particular way.
CAPEC-595: Connection Reset
In this attack pattern, an adversary injects a connection reset packet to one or both ends of a target's connection. The attacker is therefore able to have the target and/or the destination server sever the connection without having to directly filter the traffic between them.
CAPEC-596: TCP RST Injection
An adversary injects one or more TCP RST packets to a target after the target has made a HTTP GET request. The goal of this attack is to have the target and/or destination web server terminate the TCP connection.