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
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.
INFO
Published Date :
Dec. 12, 2025, 4:15 a.m.
Last Modified :
Oct. 7, 2026, 8:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-13866
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE |
Solution
- Update the plugin to the latest version.
- Verify plugin settings after update.
- Remove any unauthorized JavaScript.
- Monitor for further security advisories.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-13866.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-13866 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-13866
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-13866 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-13866 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 07, 2026
Action Type Old Value New Value Added Translation Title: Flow-Flow Social Feed Stream de looks_awesome, Description: El plugin Flow-Flow Social Feed Stream para WordPress es vulnerable a la modificación no autorizada de datos debido a una falta de verificación de capacidad en la acción AJAX flow_flow_social_auth en las versiones 3.0.0 a 4.7.5. Esto hace posible que atacantes autenticados, con acceso de nivel Suscriptor y superior, modifiquen la configuración del plugin y almacenen JavaScript arbitrario que se ejecuta cada vez que se visualiza la página de configuración del plugin. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'looks_awesome', 'product': 'Flow-Flow Social Feed Stream', 'versions': [{'status': 'affected', 'version': '3.0.0', 'versionType': 'semver', 'lessThanOrEqual': '4.7.5'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-13866', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2025-12-15T18:08:58.374995Z'} -
New CVE Received by [email protected]
Dec. 12, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-862 Added Reference https://plugins.trac.wordpress.org/browser/flow-flow-social-streams/trunk/includes/db/FFDBManager.php#L24 Added Reference https://plugins.trac.wordpress.org/browser/flow-flow-social-streams/trunk/includes/FlowFlowActivator.php#L224 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/065d01b6-30e0-4bc8-bd70-25996c2df879?source=cve