What’s Vulnerable › Vulnerabilities

CVE-2025-13866: Flow-Flow Social Feed Stream 3.0.0 - 4.7.5 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting via flow_flow_social_auth AJAX action

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-12 · updated 2026-10-07
• Weakness: CWE-862

Description

The Flow-Flow Social Feed Stream plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the flow_flow_social_auth AJAX action in versions 3.0.0 to 4.7.5. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify plugin settings and store arbitrary JavaScript that executes whenever the plugin settings page is viewed.

Affected products

• looks_awesome Flow-Flow Social Feed Stream: from 3.0.0 through 4.7.5

References

• https://plugins.trac.wordpress.org/browser/flow-flow-social-streams/trunk/includes/FlowFlowActivator.php#L224
• https://plugins.trac.wordpress.org/browser/flow-flow-social-streams/trunk/includes/db/FFDBManager.php#L24
• https://www.wordfence.com/threat-intel/vulnerabilities/id/065d01b6-30e0-4bc8-bd70-25996c2df879?source=cve

Get alerted when CVE-2025-13866 or the next vulnerability affects your stack