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

Medium 5.3 Published 10 Mar 2026 Updated 10 Mar 2026

Authenticated users can bypass ownership checks to trigger verification code resends for any user's WhatsApp account.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2026-30959?

CVE-2026-30959 is a medium-severity missing authorization vulnerability in oneuptime, published on 10 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-862, CWE-639, CWE-307, CWE-285

Which versions are affected by CVE-2026-30959?

2 open source packages ship an affected version, including @oneuptime/common. It affects 1 product.

Package	Affected	Fixed in
`@oneuptime/common` npm	All versions	`10.0.21`
`@oneuptime/common` npm	All versions	`10.0.21`

Products include Hackerbay Oneuptime.

How do I fix CVE-2026-30959?

Upgrade @oneuptime/common to 10.0.21 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-30959 being exploited?

There is no known exploitation of CVE-2026-30959 in the wild and no public exploit code.

Sources

Also known as GHSA-cw6x-mw64-q6pv.