---
id: CVE-2026-116215
title: MacCMS v10 through 2026.1000.4056 Race Condition via Card Redemption
summary: >-
  MacCMS v10 through 2026.1000.4056 contains a race condition vulnerability in
  Card::useData() that allows authenticated members to redeem one recharge card
  multiple times via the user/buy endpoint. Attackers can send many concurrent
  flag=…
severity: low
cvss: 3.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-362
vendor: maccmspro
product: maccms10
affected:
  - maccms10 <= 2021.1000.2000
  - maccms10 <= 2026.1000.4056
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T13:08:47.862Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116215'
references:
  - url: 'https://github.com/maccmspro/maccms10/issues/30'
    label: 'GitHub Issue #30'
  - url: >-
      https://github.com/maccmspro/maccms10/blob/7f388ee0008faf5b01e5df7bf5e5a6ff4bbe13e8/application/common/model/Card.php#L123-L160
  - url: 'https://github.com/maccmspro/maccms10'
  - url: >-
      https://www.vulncheck.com/advisories/maccms-v10-through-2026.1000.4056-race-condition-via-card-redemption
    label: >-
      VulnCheck Advisory: MacCMS v10 through 2026.1000.4056 Race Condition via
      Card Redemption
tags:
  - cve.org
ingestedAt: '2026-10-26T14:27:31.831Z'
---

## Overview

MacCMS v10 through 2026.1000.4056 contains a race condition vulnerability in Card::useData() that allows authenticated members to redeem one recharge card multiple times via the user/buy endpoint. Attackers can send many concurrent flag=card requests that pass the non-locking card read before it is marked used, inflating user_points to buy VIP upgrades and paid content.

## Affected

- `maccms10 <= 2021.1000.2000`
- `maccms10 <= 2026.1000.4056`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.