CVE-2025-13866 Missing authorization in Flow-Flow Social Feed Stream
Authenticated subscribers can modify plugin settings and inject stored XSS due to missing capability checks in the Flow-Flow Social Feed Stream plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-13866?
CVE-2025-13866 is a medium-severity missing authorization vulnerability in looks_awesome Flow-Flow Social Feed Stream, published on 12 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2025-13866?
How do I fix CVE-2025-13866?
No fix has been published for CVE-2025-13866 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-13866 being exploited?
There is no known exploitation of CVE-2025-13866 in the wild and no public exploit code.
Sources
Also known as GHSA-897c-rh8w-85pp.