---
id: CVE-2026-96599
title: >-
  Isotope eCommerce through 2.9.10 derives order identifiers from uniqid()
  instead of a cryptographically secure source, allowing unauthenticated
  attackers to guess identifiers
summary: >-
  Isotope eCommerce through 2.9.10 derives order identifiers from uniqid()
  instead of a cryptographically secure source, allowing unauthenticated
  attackers to guess identifiers. Guest orders lack ownership verification,
  enabling attackers …
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-330
vendor: isotope
product: isotope-core
affected:
  - isotope-core <= 2.9.10
published: '2026-09-23'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:08:55.030'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-96599'
references:
  - url: 'https://github.com/isotope/core'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/isotope/core/blob/028d47cbe69c7712339d34539721bea7369dc937/system/modules/isotope/library/Isotope/Model/ProductCollection/Order.php#L612-L618
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/isotope/core/blob/028d47cbe69c7712339d34539721bea7369dc937/system/modules/isotope/library/Isotope/Module/OrderDetails.php#L82-L104
    label: disclosure@vulncheck.com
  - url: 'https://github.com/isotope/core/issues/2585'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/isotope-ecommerce-through-2.9.10-weak-order-identifier-generation
    label: disclosure@vulncheck.com
  - url: 'https://github.com/isotope/core/issues/2585'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00375
epssPercentile: 0.2866
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-23T15:19:36.657196Z'
ingestedAt: '2026-09-23T15:26:23.424Z'
---

## Overview

Isotope eCommerce through 2.9.10 derives order identifiers from uniqid() instead of a cryptographically secure source, allowing unauthenticated attackers to guess identifiers. Guest orders lack ownership verification, enabling attackers to access order details including billing address, customer information, and purchased files by supplying a guessed uid parameter.

## Remediation

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