CVE-2026-30959: OneUptime has WhatsApp Resend Verification Authorization Bypass

Severity: medium (CVSS 5.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-10 · updated 2026-10-07
Weakness: CWE-285

Description

OneUptime is a solution for monitoring and managing online services. The resend-verification-code endpoint allows any authenticated user to trigger a verification code resend for any UserWhatsApp record by ID. Ownership is not validated (unlike the verify endpoint). This affects the UserWhatsAppAPI.ts endpoint and the UserWhatsAppService.ts service.

Affected products

oneuptime: before 10.0.21 — fixed in 10.0.21

How to fix

Upgrade to a fixed version: oneuptime 10.0.21. Check the vendor advisory for mitigations.

References

https://github.com/OneUptime/oneuptime/releases/tag/10.0.21
https://github.com/OneUptime/oneuptime/security/advisories/GHSA-cw6x-mw64-q6pv
https://github.com/OneUptime/oneuptime/security/advisories/GHSA-cw6x-mw64-q6pv

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