CVE-2024-12279: WP Social AutoConnect CSRF Vulnerability

CVE-2024-12279 Overview

The WP Social AutoConnect plugin for WordPress contains a Cross-Site Request Forgery (CSRF) vulnerability affecting all versions up to and including 4.6.2. The flaw stems from missing or incorrect nonce validation on a plugin function. Unauthenticated attackers can inject malicious web scripts through forged requests when a site administrator is tricked into clicking a crafted link. The vulnerability is tracked as CWE-352 and requires user interaction to exploit.

Critical Impact
Successful exploitation allows attackers to inject arbitrary scripts into an administrator's browser session, enabling stored XSS, session abuse, and potential site compromise through administrative actions.

Affected Products

WP Social AutoConnect plugin for WordPress — all versions
Specifically versions <= 4.6.2
Deployments using the wp-fb-autoconnect plugin package

Discovery Timeline

2025-01-04 - CVE-2024-12279 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-12279

Vulnerability Analysis

The vulnerability is a Cross-Site Request Forgery flaw that chains into script injection. The plugin exposes an administrative function that processes state-changing requests without verifying a valid WordPress nonce token. Because the function lacks proper request origin validation, any HTTP request reaching the endpoint with a valid administrator session cookie is accepted as legitimate.

Attackers pair the CSRF weakness with script injection to achieve a stored or reflected XSS outcome. The attacker hosts a malicious page that auto-submits a forged request to the vulnerable endpoint. When an authenticated administrator visits the attacker-controlled page, the browser transmits the request along with valid session cookies. The plugin then processes attacker-supplied input, resulting in malicious script execution within the WordPress admin context.

Exploitation requires user interaction, which limits mass scanning but does not eliminate risk in targeted phishing scenarios. The scope-changed impact means injected scripts execute in the administrative context of the WordPress site.

Root Cause

The root cause is missing or incorrect nonce validation, categorized under CWE-352. WordPress provides the wp_verify_nonce() and check_admin_referer() functions specifically to prevent this class of attack. The affected plugin function omits these checks or implements them incorrectly, allowing external sites to trigger sensitive plugin operations.

Attack Vector

The attack vector is network-based and requires an administrator to interact with attacker-controlled content. A typical exploitation flow involves an attacker crafting an HTML page that issues a POST or GET request to the vulnerable plugin endpoint. The payload contains malicious script content that the plugin stores or reflects back into administrative pages. The administrator receives a phishing message with a link to the malicious page, and clicking triggers the forged request.

See the Wordfence Vulnerability Report for additional technical context on the affected function and exploitation preconditions.

Detection Methods for CVE-2024-12279

Indicators of Compromise

Unexpected HTTP referers on WordPress admin-ajax or plugin endpoints originating from external domains
New or modified plugin configuration entries containing <script> tags, javascript: URIs, or encoded payloads
Administrator sessions performing plugin configuration changes without corresponding admin panel navigation in access logs
Presence of the WP Social AutoConnect plugin at version 4.6.2 or earlier in the WordPress installation

Detection Strategies

Inspect web server access logs for POST requests to WP Social AutoConnect endpoints with Referer headers pointing to untrusted third-party domains
Review WordPress database entries maintained by the plugin for HTML or JavaScript payloads that should not appear in configuration values
Correlate administrator login timestamps against plugin state changes to identify actions inconsistent with active admin sessions

Monitoring Recommendations

Enable WordPress audit logging to capture all plugin configuration changes and administrator actions
Deploy a Web Application Firewall (WAF) rule set that flags requests to plugin endpoints lacking valid nonce parameters
Monitor outbound connections from administrator browsers during WordPress admin sessions for signs of script-driven data exfiltration

How to Mitigate CVE-2024-12279

Immediate Actions Required

Update WP Social AutoConnect to a version newer than 4.6.2 as soon as the vendor publishes a patched release
Audit the WordPress plugin configuration for any injected script content and remove malicious entries
Rotate administrator credentials and invalidate active sessions if exploitation is suspected
Restrict administrative access to trusted IP ranges where feasible

Patch Information

The vendor published a code change referenced in the WordPress Plugin Changeset 3211577. Administrators should verify the installed plugin version against the changeset and consult the WP FB Autoconnect Developer Info page for release status. If no patched release is available, consider removing the plugin until a fix ships.

Workarounds

Deactivate and remove the WP Social AutoConnect plugin until a patched version is released
Deploy a WAF rule that blocks requests to the vulnerable plugin endpoint when the Referer header does not match the site origin
Train administrators to avoid clicking untrusted links while authenticated to the WordPress admin panel
Enforce short administrator session lifetimes to reduce the window for CSRF exploitation

bash

# Configuration example: disable the plugin via WP-CLI as an immediate workaround
wp plugin deactivate wp-fb-autoconnect
wp plugin delete wp-fb-autoconnect

# Verify the plugin is no longer active
wp plugin list --status=active | grep -i autoconnect