CVE-2025-47590: WPSpeed Plugin CSRF Vulnerability

CVE-2025-47590 Overview

CVE-2025-47590 is a Cross-Site Request Forgery (CSRF) vulnerability in the JExtensions Store WPSpeed plugin for WordPress. The flaw affects all versions of WPSpeed up to and including 2.6.5. The issue is tracked under CWE-352: Cross-Site Request Forgery.

An attacker can craft a malicious web page that, when visited by an authenticated WordPress administrator, triggers unauthorized state-changing actions in the WPSpeed plugin. Exploitation requires user interaction, but no attacker privileges on the target site.

Critical Impact
Successful exploitation allows an attacker to trick an authenticated user into performing unintended actions in the WPSpeed plugin, potentially altering plugin configuration or triggering privileged operations without consent.

Affected Products

JExtensions Store WPSpeed plugin for WordPress
All versions from initial release through 2.6.5
WordPress sites with the vulnerable WPSpeed plugin installed and active

Discovery Timeline

2025-05-07 - CVE-2025-47590 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-47590

Vulnerability Analysis

The vulnerability arises from missing or improperly validated anti-CSRF tokens on state-changing requests handled by the WPSpeed plugin. When an authenticated WordPress administrator visits an attacker-controlled page, the browser automatically submits authenticated requests to the vulnerable WordPress instance. Because the plugin does not verify the origin or authenticity of these requests, the server processes them as legitimate.

The attack requires user interaction, typically in the form of clicking a link or loading a page containing the malicious payload. The confidentiality impact is none, integrity impact is low, and availability impact is none, reflecting the scope of unauthorized actions available through the affected endpoints.

Root Cause

The root cause is the absence of proper CSRF protections such as unpredictable nonces or referer validation on WPSpeed's administrative endpoints. WordPress provides the wp_nonce_field() and check_admin_referer() primitives for exactly this purpose, but the plugin fails to consistently apply them to sensitive request handlers up to version 2.6.5.

Attack Vector

The attack vector is network-based and requires an authenticated victim, typically a WordPress administrator with WPSpeed access. An attacker hosts a malicious page containing a hidden form or JavaScript that auto-submits a forged request to the target site. When the victim visits the page while logged in, the browser transmits the request with valid session cookies, and the server processes the action.

No authenticated code example is available in the referenced advisory. See the Patchstack WordPress Vulnerability Advisory for additional technical details.

Detection Methods for CVE-2025-47590

Indicators of Compromise

Unexpected changes to WPSpeed plugin configuration, cache settings, or optimization rules without a corresponding administrator action in audit logs.
Web server access logs showing POST requests to WPSpeed administrative endpoints with Referer headers pointing to external, untrusted domains.
Administrator sessions triggering WPSpeed actions immediately after visiting an external link received via email, chat, or social media.

Detection Strategies

Inspect WordPress and web server logs for requests to /wp-admin/admin.php?page=wpspeed or plugin AJAX endpoints where the Referer header does not match the site's own domain.
Correlate WordPress user_meta and plugin option changes with authenticated session activity to identify actions that lack a matching administrator UI navigation trail.
Deploy a web application firewall (WAF) rule to alert on POST requests to WPSpeed handlers missing a valid WordPress nonce parameter.

Monitoring Recommendations

Enable WordPress audit logging to track plugin configuration changes and administrator activity, then forward these logs to a centralized SIEM for correlation.
Monitor outbound links clicked by privileged users through email security gateways and browser isolation solutions to reduce the likelihood of CSRF landing pages being reached.
Alert on any request to WPSpeed endpoints originating from cross-origin Referer values or lacking the expected _wpnonce query parameter.

How to Mitigate CVE-2025-47590

Immediate Actions Required

Update the WPSpeed plugin to a version later than 2.6.5 once the vendor releases a patched build addressing CVE-2025-47590.
Restrict WordPress administrator accounts to dedicated browsers or sessions that are not used for general web browsing, reducing exposure to CSRF landing pages.
Review recent WPSpeed configuration changes and revert any unauthorized modifications identified during log review.

Patch Information

At the time of publication, the Patchstack advisory identifies all versions up to and including 2.6.5 as affected. Administrators should monitor the JExtensions Store WPSpeed release channel and apply the vendor-supplied fix as soon as it becomes available.

Workarounds

Deactivate the WPSpeed plugin until a patched version is released if the plugin is not business-critical.
Deploy a WAF or virtual patch that rejects requests to WPSpeed endpoints missing a valid _wpnonce parameter or bearing an untrusted Referer header.
Enforce the SameSite=Lax or SameSite=Strict attribute on WordPress session cookies where compatible, limiting cross-origin submission of authenticated requests.

bash

# Example WAF rule (ModSecurity) blocking cross-origin POSTs to WPSpeed endpoints
SecRule REQUEST_METHOD "@streq POST" \
  "chain,phase:2,deny,status:403,id:1047590,\
   msg:'CVE-2025-47590 WPSpeed CSRF block'"
  SecRule REQUEST_URI "@rx /wp-admin/admin\.php\?page=wpspeed" \
    "chain"
    SecRule REQUEST_HEADERS:Referer "!@beginsWith https://your-site.example/" \
      "t:none"