CVE-2026-24520: bPlugins Tiktok Feed Auth Bypass Flaw

CVE-2026-24520 Overview

CVE-2026-24520 is a missing authorization vulnerability in the bPlugins Tiktok Feed plugin for WordPress. The flaw affects all versions up to and including 1.0.24. Authenticated users with low privileges can interact with plugin functionality that should be restricted to higher-privileged roles. The issue is tracked under CWE-862: Missing Authorization and stems from incorrectly configured access control checks in the plugin's request handlers.

Critical Impact

A low-privileged authenticated attacker can exploit broken access control in the Tiktok Feed plugin to perform unauthorized actions affecting integrity within the WordPress environment.

Affected Products

• bPlugins Tiktok Feed WordPress plugin
• All versions from n/a through 1.0.24
• WordPress sites with the plugin installed and activated

Discovery Timeline

• 2026-05-26 - CVE-2026-24520 published to NVD
• 2026-05-26 - Last updated in NVD database

Technical Details for CVE-2026-24520

Vulnerability Analysis

The Tiktok Feed plugin exposes one or more action handlers that fail to enforce sufficient capability or role checks. WordPress plugins typically gate sensitive operations behind current_user_can() checks and nonce verification. When these checks are missing or misconfigured, any authenticated user, including a Subscriber-level account, can invoke functions intended for administrators or editors.

The vulnerability does not require user interaction beyond authentication. The attack surface is reachable over the network through standard WordPress AJAX or REST endpoints registered by the plugin. Successful exploitation can lead to modification of plugin settings or content tied to the Tiktok Feed integration. Confidentiality and availability are not directly affected based on the published scoring.

Root Cause

The root cause is the absence or misconfiguration of access control logic in privileged plugin endpoints. The plugin registers handlers that should validate the calling user's role and capabilities before executing the requested operation. Without these checks, the authorization boundary between Subscriber-level users and administrators collapses for the affected functionality.

Attack Vector

An attacker first obtains any authenticated session on the target WordPress site, which can be as simple as a Subscriber account on sites permitting open registration. The attacker then issues crafted HTTP requests to the plugin's vulnerable endpoint with parameters that trigger the privileged action. The server processes the request without verifying that the caller holds the appropriate capability. Refer to the Patchstack Vulnerability Analysis for endpoint-level details.

Detection Methods for CVE-2026-24520

Indicators of Compromise

• Unexpected modifications to Tiktok Feed plugin settings or shortcodes by non-administrator accounts
• HTTP POST requests to plugin AJAX actions originating from low-privileged user sessions
• Newly created Subscriber accounts that subsequently issue requests to /wp-admin/admin-ajax.php with Tiktok Feed action parameters

Detection Strategies

• Audit WordPress access logs for requests to plugin endpoints from accounts lacking administrative roles
• Compare plugin configuration snapshots to detect unauthorized changes performed by non-admin users
• Enable WordPress activity logging plugins to record capability checks and option updates tied to the Tiktok Feed plugin

Monitoring Recommendations

• Alert on REST and AJAX requests to bPlugins Tiktok Feed handlers from users with the Subscriber or Contributor role
• Monitor wp_options table changes for keys associated with the Tiktok Feed plugin
• Track spikes in new account registrations followed by plugin endpoint interactions

How to Mitigate CVE-2026-24520

Immediate Actions Required

• Update the bPlugins Tiktok Feed plugin to a version above 1.0.24 when a patched release becomes available
• Disable open user registration if not required, or restrict the default role to limit exposure
• Deactivate the Tiktok Feed plugin until a fix is verified if the site permits self-registration

Patch Information

As of the NVD publication date, the advisory lists affected versions through 1.0.24. Administrators should consult the Patchstack Vulnerability Analysis and the plugin's WordPress.org listing for the latest patched release.

Workarounds

• Apply a Web Application Firewall (WAF) rule blocking unauthenticated and low-privileged access to the plugin's AJAX and REST endpoints
• Restrict access to /wp-admin/admin-ajax.php plugin actions by IP allowlist where feasible
• Remove the plugin if the Tiktok Feed functionality is non-essential to site operations

# Example WAF rule to block low-privileged access to plugin AJAX actions
# (adjust the action name to match the plugin's registered handler)
SecRule REQUEST_URI "@contains /wp-admin/admin-ajax.php" \
  "chain,deny,status:403,id:1026024520,msg:'Block Tiktok Feed plugin AJAX from low-priv users'"
SecRule ARGS:action "@rx ^(btf_|tiktok_feed_)"