CVE-2025-1506: Wpmet WP Social Login CSRF Vulnerability

CVE-2025-1506 Overview

CVE-2025-1506 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] in the WP Social Login and Register Social Counter plugin for WordPress. The flaw affects all versions up to and including 3.1.0. The root cause is missing or incorrect nonce validation in the counter_access_key_setup() function located in inc/counter.php. Unauthenticated attackers can update social login provider settings by tricking a site administrator into clicking a crafted link. Successful exploitation requires user interaction from a privileged user but no attacker authentication.

Critical Impact
Attackers can modify social login provider settings on affected WordPress sites by coercing an authenticated administrator to trigger a forged request, potentially redirecting authentication flows to attacker-controlled providers.

Affected Products

Wpmet WP Social Login and Register Social Counter plugin for WordPress
All versions up to and including 3.1.0
Fixed in the changeset published at revision 3246155

Discovery Timeline

2025-02-28 - CVE-2025-1506 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-1506

Vulnerability Analysis

The vulnerability resides in the counter_access_key_setup() function within inc/counter.php of the WP Social Login and Register Social Counter plugin. This function handles updates to social login provider access key settings but does not verify a valid WordPress nonce before processing the incoming request. Without nonce validation, WordPress cannot confirm that the request originated from an authorized administrator action within the admin interface.

An attacker exploits this by hosting a malicious page or crafting a link that issues a request to the vulnerable endpoint. If an authenticated administrator visits the attacker-controlled resource, their browser submits the forged request using the administrator's active session cookies. The plugin then processes the change as if it were a legitimate administrative action.

The impact is limited to integrity of plugin settings. Confidentiality and availability are not directly affected, but altered social login provider configurations can facilitate follow-on attacks against site users.

Root Cause

The root cause is a missing wp_verify_nonce() or check_admin_referer() call in the settings update path. WordPress provides nonce primitives specifically to defend against CSRF, and the plugin fails to apply them on this state-changing operation.

Attack Vector

Exploitation occurs over the network and requires user interaction from an authenticated site administrator. The attacker delivers a malicious link through phishing, forum posts, or an embedded resource. When the administrator loads the attacker's content, the browser issues an authenticated cross-origin request that the plugin accepts.

Refer to the WordPress Plugin Source Code and the Wordfence Vulnerability Report for technical specifics of the vulnerable code path.

Detection Methods for CVE-2025-1506

Indicators of Compromise

Unexpected modifications to WP Social plugin settings, particularly social login provider access keys, without corresponding admin activity in audit logs.
HTTP POST requests to the plugin's counter setup endpoint originating with Referer headers from external domains.
Administrator sessions producing state-changing requests immediately after visiting untrusted external sites.

Detection Strategies

Review WordPress access logs for requests targeting wp-social/inc/counter.php or the associated admin-ajax action with off-site referrers.
Monitor the WordPress options table for unexplained changes to social login provider configurations stored by the plugin.
Enable and inspect plugin audit trails or use a security plugin that records settings changes attributable to administrator sessions.

Monitoring Recommendations

Alert on administrator-authenticated POST requests with missing or invalid _wpnonce parameters targeting the plugin's endpoints.
Track anomalous outbound OAuth or social login redirect destinations that deviate from previously known provider URLs.
Correlate administrator browsing telemetry with subsequent plugin configuration changes to identify CSRF-triggered activity.

How to Mitigate CVE-2025-1506

Immediate Actions Required

Update the WP Social Login and Register Social Counter plugin to a version later than 3.1.0 that includes the fix from changeset 3246155.
Audit current social login provider settings in the plugin and revert any unauthorized changes.
Instruct administrators to log out of WordPress sessions before browsing untrusted external sites, and to use separate browsers or profiles for administrative work.

Patch Information

The vendor addressed the vulnerability by adding nonce validation to the affected function. The fix is published in the WordPress Plugin Changeset. Administrators should upgrade through the WordPress plugin manager to receive the patched release.

Workarounds

Deactivate the WP Social Login and Register Social Counter plugin until the patched version is installed.
Restrict administrator access to the WordPress dashboard using IP allowlists or a web application firewall rule that blocks cross-origin state-changing requests to the plugin endpoint.
Enforce Same-Site cookie policies and require re-authentication for sensitive administrative operations to reduce CSRF exposure.

bash

# Example WAF rule concept: block POST to the vulnerable endpoint when Referer is external
# (adapt to your WAF syntax)
SecRule REQUEST_METHOD "@streq POST" \
  "chain,deny,status:403,id:1000506,msg:'Block CSRF to WP Social counter endpoint'"
  SecRule REQUEST_URI "@contains /wp-social/inc/counter.php" \
    "chain"
    SecRule REQUEST_HEADERS:Referer "!@beginsWith https://your-wordpress-site.example/"