Description

OneUptime is a solution for monitoring and managing online services. Prior to version 10.0.34, the WhatsApp POST webhook handler (/notification/whatsapp/webhook) processes incoming status update events without verifying the Meta/WhatsApp X-Hub-Signature-256 HMAC signature, allowing any unauthenticated attacker to send forged webhook payloads that manipulate notification delivery status records, suppress alerts, and corrupt audit trails. The codebase already implements proper signature verification for Slack webhooks. This issue has been patched in version 10.0.34.

INFO

Published Date :

2026-03-20T20:05:13.690Z

Last Modified :

2026-03-24T02:01:35.639Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33143 vulnerability.

Vendors Products
Hackerbay
  • Oneuptime
Oneuptime
  • Oneuptime
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33143.

URL Resource
https://github.com/OneUptime/oneuptime/security/advisories/GHSA-g5ph-f57v-mwjc cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact