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CVE-2026-85667— xiaobei through 5.5.2 Unauthenticated Webhook Message Injection

Quick assessment

Affected
TeamWiseFlow xiaobei
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.

TeamWiseFlow xiaobei是TeamWiseFlow团队的一款信息化产品。 TeamWiseFlow xiaobei 5.5.2及之前版本存在授权问题漏洞，该漏洞源于未对webhook端点实施身份验证或签名验证，可能导致未经身份验证的攻击者通过/webhook_worktool处理器发布恶意消息，并利用未经验证的媒体URL获取对内部服务执行服务端请求伪造攻击。

CVSS 9.1 · Critical EPSS 0.38% · P32

Affected Version Matrix 1

VendorProduct Version RangeStatus
TeamWiseFlow xiaobei ≤ 5.5.2 affected
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I. Basic Information for CVE-2026-85667

Vulnerability Information
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Vulnerability Title
xiaobei through 5.5.2 Unauthenticated Webhook Message Injection
Source: CVE Program / CVE List V5
Vulnerability Description
xiaobei through 5.5.2 fails to implement authentication or signature validation on webhook endpoints, allowing unauthenticated attackers to inject arbitrary messages into the agent pipeline. Attackers can publish malicious messages via the /webhook_worktool handler and exploit unvalidated media URL fetching to perform server-side request forgery against internal services.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
TeamWiseFlow xiaobei 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TeamWiseFlow xiaobei是TeamWiseFlow团队的一款信息化产品。 TeamWiseFlow xiaobei 5.5.2及之前版本存在授权问题漏洞，该漏洞源于未对webhook端点实施身份验证或签名验证，可能导致未经身份验证的攻击者通过/webhook_worktool处理器发布恶意消息，并利用未经验证的媒体URL获取对内部服务执行服务端请求伪造攻击。
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
TeamWiseFlow xiaobei 0 ~ 5.5.2 -

II. Public POCs for CVE-2026-85667

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III. Intelligence Information for CVE-2026-85667

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Vendor Advisories for CVE-2026-85667 (1)

Other References for CVE-2026-85667 (2)

IV. Related Vulnerabilities

Same weakness: CWE-306

V. Comments for CVE-2026-85667

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