Broken Access Control in OneClick Chat to Order (≤ 1.0.9): What WordPress Site Owners Need to Know

Fecha: 19 de febrero, 2026
CVE: CVE-2025-14270
Versiones afectadas: OneClick Chat to Order plugin ≤ 1.0.9
Corregido en: 1.1.0
Reportado por: Mohammad Amin Hajian (mamadrce)
Severidad: Low (CVSS v3.1 Vector: AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N — score 2.7)

From a Hong Kong security expert perspective: this advisory explains the issue clearly, outlines immediate and practical mitigations, and provides detection and hardening guidance suitable for administrators, developers and site owners in enterprise and SMB environments. No exploit details are published here.

Resumen ejecutivo

A broken access control vulnerability affects OneClick Chat to Order versions up to and including 1.0.9. An authenticated user with Editor-level privileges (or any role with similar capabilities) could update plugin settings because the plugin did not perform appropriate authorization and nonce checks. The vendor released version 1.1.0 to correct the problem.

Although exploitation requires an authenticated user with elevated privileges (Editor or higher), the practical risks include alteration of webhook URLs, API keys, phone numbers and message templates. These changes can redirect customer messages, leak secrets to third parties, or create persistent misconfigurations that enable further attacks.

Lo que sucedió (visión técnica)

• The plugin exposes an admin endpoint that accepts updates to plugin configuration.
• The request handler lacked proper server-side capability checks (for example, current_user_can(‘manage_options’) or a plugin-specific capability) and did not verify a nonce.
• Consequently, an authenticated Editor could craft a POST request to change settings without the expected authorization checks.
• This is a classic missing authorization / missing nonce issue — not remote code execution — but it allows integrity modifications to configuration.

Impact analysis

Severity is classified as low because the required privilege is Editor (PR:H) and the primary impact is integrity (I:L). That said, configuration changes can be leveraged in chained attacks or cause data leakage if API keys and webhook endpoints are modified.

Real-world impacts include:

• Redirecting customer messages or intercepting them by changing webhook targets.
• Replacing valid API keys with attacker-controlled values to exfiltrate information.
• Introducing malicious redirect endpoints or altering customer-facing templates.

Quién está en riesgo

• Sites using OneClick Chat to Order ≤ 1.0.9.
• Sites that give Editor or similar capabilities to many users or to users who are not fully trusted.
• Multi-author blogs, membership sites and eCommerce sites where non-admin roles have broad capabilities.

Pasos de mitigación inmediatos (qué hacer ahora)

1. Update the plugin to version 1.1.0 (or later). This is the definitive fix.
2. Si no puede actualizar de inmediato:
   • Desactiva temporalmente el plugin.
   • Or restrict access to its settings pages to Administrator accounts only via role management or custom capability checks.
3. Audit accounts: review and remove or downgrade Editor-level accounts that are unused or suspicious. Enforce strong passwords and 2FA for elevated users.
4. Check plugin settings for unexpected changes: webhook URLs, API keys, phone numbers and templates.
5. Apply web application firewall (WAF) rules or server-side request filtering to block unauthorized POSTs to the plugin’s settings endpoints (see WAF guidance below).
6. Increase monitoring: pay attention to admin-area POSTs, unknown IPs performing admin actions, and new outgoing connections to untrusted domains.

Mitigation mapping: how layered protections help

Layered controls reduce exposure while you patch:

• WAF/virtual patching: can detect and block anomalous POSTs to known plugin settings endpoints that do not carry valid nonces or expected referer patterns.
• Access control hardening: enforce least privilege and limit which roles can access plugin admin pages.
• Logging and alerting: comprehensive admin activity logs make it easier to detect unauthorized configuration changes quickly.
• Integrity monitoring: file and database integrity checks detect unexpected configuration changes or injected content.

How to detect if you were targeted

Focus detection on unexpected configuration changes and unusual admin activity:

• Look for unexpected updates to WhatsApp numbers, webhook URLs, API keys or message templates.
• Search server access logs for POSTs to /wp-admin/admin.php or /wp-admin/admin-ajax.php with parameters related to the plugin’s actions.
• Check WordPress activity logs (if enabled) for Editor accounts performing configuration changes.
• Monitor outbound connections to unfamiliar domains (possible new webhook targets).
• Review timestamps and client IPs for admin requests outside normal work patterns.

Recommended WAF rules and virtual patching (high level)

Apply these conceptual WAF controls until the plugin is patched:

• Require valid WordPress nonce patterns and appropriate referer headers for POSTs to plugin settings endpoints; block requests that lack them.
• Block or alert on POST requests to known plugin admin actions originating from non-admin pages or from accounts/agents that do not match typical admin UI flows.
• Rate-limit admin-area POST requests per IP and per account to reduce automated abuse.
• Flag or block settings updates that change webhook URLs, API keys, or contact numbers to domains/IPs on a denylist.
• Apply geo/IP restrictions if your admin activity is normally constrained to specific regions.

Lista de verificación de respuesta a incidentes (si sospechas de un compromiso)

1. Isolate: deactivate the vulnerable plugin and block the endpoint if feasible.
2. Contain: reset API keys, webhook tokens and rotate any credentials used by the plugin.
3. Investigate: review logs to identify which account or IP performed the change and what changes were made.
4. Remediate: update the plugin to 1.1.0+, remove unauthorized changes and restore settings from a known-good backup.
5. Eradicate: remove malicious users, backdoors or injected content.
6. Recover: re-enable services only after verification and re-apply protective rules.
7. Post-mortem: review access control policies, account hygiene, patching cadence and logging gaps; update processes accordingly.

Endurecimiento y prevención a largo plazo.

1. Apply the principle of least privilege: only give Editor/Administrator capabilities to trusted personnel.
2. Enforce 2FA and strong password policies for elevated accounts.
3. Patch regularly: treat plugins as critical software and apply tested updates promptly.
4. Maintain robust logging and retain logs for admin actions and server requests.
5. Use integrity monitoring tools for files and key database tables to detect unexpected changes quickly.
6. Use virtual patching where available as a temporary measure, but always apply vendor patches as the permanent fix.
7. Keep offsite backups and test restores periodically.

Practical steps for developers (secure coding reminders)

• Always perform server-side capability checks (current_user_can()) for admin actions.
• Verify WordPress nonces for state-changing requests (wp_verify_nonce()).
• Do not rely on referer headers or client-side checks as the primary control.
• Restrict admin AJAX endpoints to proper contexts and use plugin-specific capabilities where appropriate.
• Log sensitive configuration changes and consider notifying administrators on major updates.

Preguntas frecuentes (FAQ)

P: Does this vulnerability allow remote code execution?
R: No. It is a missing authorization check that allows an authenticated Editor to modify plugin settings; there is no known remote code execution vector associated with this issue.

P: I’m an Editor on a site — should I be worried?
R: If your site uses the vulnerable plugin, Editors have the required privilege to make configuration changes. Trusted Editors should secure accounts (strong password + 2FA). Site owners should minimise Editor accounts where possible.

P: I already updated to 1.1.0. Do I need to do anything else?
R: After updating, verify plugin settings, audit recent changes and review logs. Rotate any API keys or tokens that might have been changed or exposed.

P: Can a WAF fully protect me from this without updating?
R: A WAF can mitigate many exploitation attempts through virtual patching and request filtering, but it is a compensating control — not a substitute for applying the vendor patch. Update the plugin as the permanent fix.

Lista de verificación de detección para administradores

• Search server logs for POST requests to /wp-admin/admin.php or /wp-admin/admin-ajax.php with the plugin’s action parameter.
• Identify edits to plugin settings fields (phone numbers, webhook URLs, API keys).
• Check user activity logs for Editor accounts performing configuration updates.
• Review outbound connections and DNS records for unexpected domains.
• Run full malware scans and integrity checks on files and relevant database fields.

Why timely patching matters

Patching is the most effective mitigation. Low-severity issues can still be abused in large-scale scans or combined with other weaknesses (weak account hygiene, shared credentials). Rapid updates and good operational controls break attack chains and reduce windows of exposure.

Final recommendations — action checklist

• Update OneClick Chat to Order to version 1.1.0 or uninstall until patched.
• Review and reduce Editor (and similar) accounts across sites.
• Enable two-factor authentication for elevated accounts.
• Enable admin-area protections in your WAF or request-filtering solution and apply virtual patches until you update.
• Monitor admin activity and outgoing connections for anomalies.
• Rotate API keys and webhook secrets if they may have been exposed.
• Verify backup integrity and recovery procedures.

Reflexiones finales

Even routine configuration endpoints must enforce rigorous server-side authorization. For site owners in Hong Kong and the wider region: combine good account hygiene, timely patching, robust logging and layered protections (WAF, integrity monitoring, and least-privilege policies). These measures significantly reduce risk.

If you require hands-on assistance, consult a trusted security professional or your hosting provider for triage and remediation support.

— Experto en Seguridad de Hong Kong