Vulnerabilities CVE-2026-11907

CVE-2026-11907

Medium

Open

TLP:CLEAR

Stream <= 4.2.0 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Disclosure via Heartbeat API

NVD CVE.org

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Description

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.

Details

CVSS Score: 6.5
EPSS Score ⓘ: 0.23%

14.4th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Confidence: 90%
Published: Aug 7, 2026
Last Modified: Aug 8, 2026

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