CVE-2026-3478

HIGH EPSS 18.9%
Published Mar 21, 20263mo ago · Modified Jun 17, 20262w ago
7.2 CVSS 3.1
High
Find Similar
Published Mar 21, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

The Content Syndication Toolkit plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.3 via the redux_p AJAX action in the bundled ReduxFramework library. The plugin registers a proxy endpoint (wp_ajax_nopriv_redux_p) that is accessible to unauthenticated users. The proxy() method in the Redux_P class takes a URL directly from $_GET['url'] without any validation (the regex is set to /.*/ which matches all URLs) and passes it to wp_remote_request(), which does not have built-in SSRF protection like wp_safe_remote_request(). There is no authentication check, no nonce verification, and no URL restriction. The response from the requested URL is then returned to the attacker, making this a full-read SSRF. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services, scan internal network ports, or interact with cloud metadata endpoints.

CVSS Details

Base Score
7.2
Exploitability
3.9
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
18.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-918 Server-Side Request Forgery (SSRF) Validation

References 7

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/content-syndication-toolkit/tags/1.3/inc/ReduxFramework/ReduxCore/inc/class.p.php#L161
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/content-syndication-toolkit/tags/1.3/inc/ReduxFramework/ReduxCore/inc/class.p.php#L219
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/content-syndication-toolkit/tags/1.3/inc/ReduxFramework/ReduxCore/inc/class.p.php#L7
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/content-syndication-toolkit/trunk/inc/ReduxFramework/ReduxCore/inc/class.p.php#L161
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/content-syndication-toolkit/trunk/inc/ReduxFramework/ReduxCore/inc/class.p.php#L219
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/content-syndication-toolkit/trunk/inc/ReduxFramework/ReduxCore/inc/class.p.php#L7
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/f8381866-d991-4638-ab4d-3b8697acf414?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.