CVE-2025-13866

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.

CVSS 3.1

6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 16% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2025-12-12

Modified

2026-10-07

Record from

the NVD, synced 2026-10-19

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

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