---
id: CVE-2026-11907
title: >-
  The Stream plugin for WordPress is vulnerable to authorization bypass in all
  versions up to, and including, 4.2.0
summary: >-
  The Stream plugin for WordPress is vulnerable to authorization bypass in all
  versions up to, and including, 4.2.0. This is due to the plugin not properly
  verifying that a user is authorized to perform an action. This makes it
  possible fo…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-862
published: '2026-08-07'
updated: '2026-08-08'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-11907'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/stream/tags/4.2.1/classes/class-live-update.php#L186
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/b7c7e45a-581e-4cf0-83ac-cbca816701f1?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00227
epssPercentile: 0.13722
ingestedAt: '2026-08-09T02:32:00.297Z'
---

## Overview

The Stream plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.2.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to access all Stream activity records via the Heartbeat API.

## Remediation

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