Auth bypass in Kivicare

CVE-2026-13611

The KiviCare WordPress plugin before 4.5.5 does not perform authorization checks on some of its REST endpoints, allowing unauthenticated attackers to disclose the patient roster and, when a payment gateway is configured, the payment gateway secret key.

Vulnerability class: Information Disclosure

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-13611: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Kivicare

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-13611?
CVE-2026-13611 is a medium-severity vulnerability in Kivicare, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-09-01.
How severe is CVE-2026-13611?
Medium severity. CVSS v3 base score is 5.3 out of 10.