CVE-2026-11990Network attack vector

Unauthenticated payment bypass via unchecked success callback

Published Jul 10, 2026 · Updated Jul 10, 2026

Missing authorization in KiviCare for WordPress 4.4.0 and earlier allows remote attackers to confirm appointments and forge payment records. The /payment-success REST handler accepts attacker-chosen appointment and payment identifiers, invokes KCPayLater, and writes a completed mapping without checking authorization or payment. A default installation is exposed because gateway resolution returns every registered gateway regardless of enabled status, leaving the manual gateway selectable.

CVSS severity5.3
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in KiviCare for WordPress 4.4.0 and earlier allows remote attackers to confirm appointments and forge payment records. The /payment-success REST handler accepts attacker-chosen appointment and payment identifiers, invokes KCPayLater, and writes a completed mapping without checking authorization or payment. A default installation is exposed because gateway resolution returns every registered gateway regardless of enabled status, leaving the manual gateway selectable.

The record

CVE
CVE-2026-11990
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
Iqonic Design
Product
KiviCare
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=4.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Iqonic Design · KiviCareversion=0 <=4.4.0

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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