Is CVE-2026-30959 in the CISA KEV catalog?

No. CVE-2026-30959 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-30959?

CVE-2026-30959 has a CVSS v3 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2026-30959?

CVE-2026-30959 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-30959?

Upgrade oneuptime to 10.0.21 or later.

CVE & CISA-KEV Catalog

CVE-2026-30959

MEDIUM

5.0

CVSS v3

NVD

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.

CWE-285 CWE-307 CWE-639Authorization Bypass Through User-Controlled Key CWE-862Missing Authorization

How to fix

Remediation Available

oneuptimeNVD

Affected:< 10.0.21Fixed in:10.0.21CVE-2026-30959derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

Exploit Intelligence

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Exploit1

github.com

Release Notes1

github.com

Related Vulnerabilities

Other CWE-285 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2021-28799	Critical	10.0	78%	KEV + Ransom	Fix
CVE-2023-32707	High	8.8	74%	-	Fix
CVE-2023-48241	High	7.5	73%	-	Fix
CVE-2023-22480	High	7.3	67%	-	Fix
CVE-2022-3229	Critical	9.8	66%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-12.