CVE-2026-92965 Overview
CVE-2026-92965 affects the TikTok WordPress plugin in versions before 1.4.2. The plugin fails to verify authorization before processing a sign-in code supplied in the URL. Any unauthenticated visitor can force the site to redeem an attacker-chosen code against the TikTok advertising platform using the site's own credentials. The plugin performs loose matching on the callback URL, so requests that merely resemble the expected callback trigger the handler on every site request rather than only on the administrator's sign-in flow.
Critical Impact
Unauthenticated attackers can bind a WordPress site's TikTok advertising integration to an attacker-controlled account, corrupting the site's advertising session state.
Affected Products
- TikTok WordPress plugin versions prior to 1.4.2
- WordPress installations with the affected plugin active
- Sites integrated with the TikTok advertising platform via this plugin
Discovery Timeline
- 2026-09-20 - CVE-2026-92965 published to NVD
- 2026-09-22 - Last updated in NVD database
Technical Details for CVE-2026-92965
Vulnerability Analysis
The vulnerability is a missing authorization flaw classified under [CWE-862]. The plugin registers a callback handler intended to complete an OAuth-style sign-in flow with the TikTok advertising platform. The handler accepts a sign-in code from the request URL and exchanges it against the platform using the site's stored credentials. No capability check, nonce validation, or user context check gates this operation. Any anonymous visitor can trigger it by crafting a request.
A second defect compounds the issue. The plugin identifies the callback request through loose URL matching, so requests that resemble the expected callback path activate the handler. Because the check runs on every request to the site, an attacker only needs to send one crafted request to a public endpoint to force redemption of an attacker-supplied code.
Root Cause
The root cause is the absence of an authorization check on a state-changing action ([CWE-862]). The callback handler treats the presence of a sign-in code parameter as sufficient justification to act, and it does not confirm that the request originates from an administrator completing an authenticated sign-in flow. The permissive URL matching further removes any incidental gating that a stricter route check might have provided.
Attack Vector
The attack is network-based and requires no authentication or user interaction. An attacker obtains a sign-in code from the TikTok advertising platform tied to an account under their control. The attacker then issues an HTTP request to any URL on the target WordPress site that satisfies the loose matching used by the plugin, supplying the code as a URL parameter. The plugin redeems the code with the site's credentials, associating the site's integration with the attacker's advertising account. This corrupts the integrity of the site's advertising configuration.
No verified proof-of-concept code is published. See the WPScan Vulnerability Report for additional technical detail.
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Stop Identity AttacksDetection Methods for CVE-2026-92965
Indicators of Compromise
- Unexpected changes to the TikTok advertising integration configuration stored in the WordPress database, including tokens or linked account identifiers that administrators did not authorize.
- Web server access logs showing requests from unauthenticated sources containing the TikTok sign-in code parameter to arbitrary URLs on the site.
- Alerts or notifications from the TikTok advertising platform indicating a new session or authorization event that does not correlate with administrator activity.
Detection Strategies
- Inventory WordPress sites and identify installations of the TikTok plugin at versions below 1.4.2.
- Review HTTP access logs for anonymous requests carrying the plugin's callback parameters, especially requests to non-administrative URLs.
- Audit plugin option values in the wp_options table for unexpected changes to TikTok integration state.
Monitoring Recommendations
- Forward WordPress access logs and plugin audit events to a central log platform and alert on anonymous requests that include the plugin's sign-in code parameter.
- Monitor the TikTok advertising account for unexpected re-authorization or session creation events.
- Track plugin file integrity and version state across managed WordPress instances to identify unpatched hosts.
How to Mitigate CVE-2026-92965
Immediate Actions Required
- Upgrade the TikTok WordPress plugin to version 1.4.2 or later on all affected sites.
- Revoke any active TikTok advertising platform authorization associated with the site and re-authorize from a known administrator session.
- Review the site's advertising activity for actions that did not originate from an authorized administrator.
Patch Information
The vendor addressed the missing authorization check in version 1.4.2 of the TikTok WordPress plugin. Administrators should install this version or a later release. Refer to the WPScan Vulnerability Report for the advisory reference.
Workarounds
- Deactivate and remove the TikTok plugin until it can be updated to a fixed version.
- Restrict access to the WordPress site with a web application firewall rule that blocks anonymous requests containing the plugin's sign-in code parameter.
- Limit administrative endpoints and callback URLs to authenticated sessions where feasible using server-level access controls.
# Example WP-CLI command to update the plugin to a fixed version
wp plugin update tiktok --version=1.4.2
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
