---
id: CVE-2026-111490
title: Insecure direct object reference (IDOR) vulnerability in the MatchPoint API
summary: >-
  Insecure direct object reference (IDOR) vulnerability in the MatchPoint API,
  which relies on the `actingasuser` HTTP header without verifying the
  requester's authorization for the specified user. Manipulation of sequential
  identifiers al…
severity: critical
cvss: 9.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N'
cvssSource: cna
cwe:
  - CWE-639
vendor: TPC Software
product: Matchpoint
affected:
  - Matchpoint Versions prior to latest one
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T21:49:40.608Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111490'
references:
  - url: >-
      https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-tpc-softwares-matchpoint
tags:
  - cve.org
ingestedAt: '2026-11-05T23:41:31.961Z'
epss: 0.00375
epssPercentile: 0.31657
---

## Overview

Insecure direct object reference (IDOR) vulnerability in the MatchPoint API, which relies on the `actingasuser` HTTP header without verifying the requester's authorization for the specified user. Manipulation of sequential identifiers allows access to personal, banking, and financial data, private messages, and QR codes for physical access, as well as the ability to modify third-party accounts, change passwords, impersonate users, and transfer virtual balances.

## Affected

- `Matchpoint Versions prior to latest one`

## Remediation

The manufacturer has announced the following measures. The server fixes for CVE-2026-111490 and CVE-2026-111493 have already been deployed and are applied regardless of the app version. To address the remaining vulnerabilities, it is recommended that you install the latest available version.