What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-04 · updated 2026-09-10
• Weakness: CWE-306

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.

Affected products

• TeamWiseFlow xiaobei: through 5.5.2

References

• https://github.com/TeamWiseFlow/xiaobei
• https://github.com/TeamWiseFlow/xiaobei/blob/v5.5.2/awada/awada-server/src/routes/webhook-worktool.ts
• https://github.com/TeamWiseFlow/xiaobei/issues/440
• https://www.vulncheck.com/advisories/xiaobei-through-5.5.2-unauthenticated-webhook-message-injection
• https://github.com/TeamWiseFlow/xiaobei/issues/440

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