CVE-2026-19416: unknown kivicare
CVSS: 4.3v3.1MediumDeferred
Published 19-08-2026Last modified 19-08-2026
Vulnerability summary
CVE-2026-19416 is a medium (CVSS 4.3) vulnerability in unknown kivicare. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.2% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 4.5.4.
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.27%
0%100%
Low · +0.08 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 19-08-2026PublishedVulnerability first disclosed.
- 19-08-2026Last modifiedVulnerability information updated.
Description
The KiviCare WordPress plugin before 4.5.4 does not verify that the requesting user owns the appointment being modified, allowing authenticated patient-level users to cancel and reschedule other patients' appointments.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 4.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NSourcesAll 3 agree
- NVDNIST4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- wordfenceSource4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
+0.08 pp
From 0.19% on 19-09-2026
19-09-202619-10-2026
EPSS score0.27%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-639Authorization Bypass Through User-Controlled KeyThe system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
- CWE-862Missing AuthorizationThe product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Affected systems
Unknown1 product
- kivicare< 4.5.4
Wordpress1 product
- kivicare-clinic-management-system< 4.5.4
2 vendors · 2 products