CVE-2025-13427— Authentication Bypass in Dialogflow CX Messenger
Quick assessment
Affected
Google Cloud Dialogflow CX Messenger
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Google Cloud Dialogflow CX Messenger是美国谷歌（Google）公司的一个构件对话式AI平台的软件。 Google Cloud Dialogflow CX Messenger存在安全漏洞，该漏洞源于身份验证绕过，可能导致未经验证的用户访问受限聊天代理。
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I. Basic Information for CVE-2025-13427
Vulnerability Information
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Vulnerability Title
Authentication Bypass in Dialogflow CX Messenger
Source: CVE Program / CVE List V5
Vulnerability Description
An authentication bypass vulnerability in Google Cloud Dialogflow CX Messenger allowed unauthenticated users to interact with restricted chat agents, gaining access to the agents' knowledge and the ability to trigger their intents, by manipulating initialization parameters or crafting specific API requests.
All versions after August 20th, 2025 have been updated to protect from this vulnerability. No user action is required for this.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Google Cloud Dialogflow CX Messenger 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Cloud Dialogflow CX Messenger是美国谷歌（Google）公司的一个构件对话式AI平台的软件。 Google Cloud Dialogflow CX Messenger存在安全漏洞，该漏洞源于身份验证绕过，可能导致未经验证的用户访问受限聊天代理。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Google Cloud | Dialogflow CX Messenger | 0 ~ 2025-08-20 | - |
|
II. Public POCs for CVE-2025-13427
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2025-13427 (1)
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V. Comments for CVE-2025-13427
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