CVE-2026-11907
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductStream – Activity Log & Audit Trail
PublishedAug 7, 2026
First seenAug 7, 2026
Weakness typeCWE-862Missing authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xwp Stream – Activity Log & Audit Trail | v ≤ 4.2.0 | — |
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