CVE-2024-31238: Zaytech Smart Online Order CSRF Flaw

CVE-2024-31238 Overview

CVE-2024-31238 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the Zaytech Smart Online Order for Clover plugin for WordPress. The flaw exists in all versions up to and including 1.5.5. Attackers can trick authenticated administrators into submitting forged requests that create or modify coupons within the plugin. Successful exploitation requires user interaction, typically through a crafted link or malicious web page. The issue is tracked under CWE-352 and was published to the National Vulnerability Database (NVD) on April 12, 2024.

Critical Impact

Attackers can forge requests that create or modify coupon data, leading to financial loss and integrity compromise on affected Clover online ordering sites.

Affected Products

• Zaytech Smart Online Order for Clover WordPress plugin
• All versions from n/a through 1.5.5
• WordPress sites running the vulnerable plugin with administrator sessions

Discovery Timeline

• 2024-04-12 - CVE-2024-31238 published to NVD
• 2026-04-28 - Last updated in NVD database

Technical Details for CVE-2024-31238

Vulnerability Analysis

The Smart Online Order for Clover plugin fails to validate the origin of state-changing HTTP requests for coupon management endpoints. The plugin does not enforce a valid WordPress nonce or equivalent anti-CSRF token before processing coupon creation and modification actions. An attacker who lures an authenticated administrator to a malicious page can trigger requests that the plugin processes as legitimate. The request executes with the victim's privileges in the WordPress admin context.

Exploitation leverages the trust the application places in the authenticated session. Because the affected endpoints alter promotional coupons, attackers can issue arbitrary discount codes or modify existing ones. This directly impacts revenue integrity for merchants using Clover online ordering through the plugin.

Root Cause

The root cause is missing CSRF protection on coupon management actions, classified under CWE-352. The plugin omits server-side verification of WordPress nonces and does not check the Referer or Origin headers before executing sensitive operations. Any authenticated session can be coerced into performing the action without the user's intent.

Attack Vector

The attack vector is network-based and requires user interaction. An attacker hosts a malicious page or sends a crafted link to a site administrator. When the administrator visits the page while authenticated to WordPress, the browser submits a forged request to the vulnerable plugin endpoint. The plugin processes the request and creates or modifies a coupon as instructed by the attacker.

No verified proof-of-concept code is published. Refer to the Patchstack Vulnerability Report for additional technical context.

Detection Methods for CVE-2024-31238

Indicators of Compromise

• Unexpected coupon entries appearing in the Smart Online Order for Clover plugin dashboard
• Modifications to existing coupon discount values, expiration dates, or usage limits without administrator action
• WordPress access logs showing POST requests to plugin coupon endpoints with external Referer headers
• Coupon redemption activity tied to codes that administrators do not recognize

Detection Strategies

• Audit WordPress administrative actions and compare coupon creation events against authorized changes
• Monitor HTTP request logs for POST requests to plugin endpoints lacking valid nonce parameters
• Inspect web server logs for cross-origin Referer values targeting plugin administrative URLs
• Review plugin database tables for coupon entries created outside expected administrator workflows

Monitoring Recommendations

• Enable WordPress audit logging plugins to record all coupon-related changes with user attribution
• Alert on coupon creation events that originate from sessions with unusual geolocation or user-agent strings
• Track plugin version inventory across managed WordPress sites to identify hosts running 1.5.5 or earlier
• Correlate administrator browsing telemetry with subsequent plugin state changes to surface suspicious sequences

How to Mitigate CVE-2024-31238

Immediate Actions Required

• Update Smart Online Order for Clover to a version newer than 1.5.5 once released by the vendor
• Restrict WordPress administrator accounts to dedicated browsers or sessions that avoid arbitrary web browsing
• Enforce multi-factor authentication on all WordPress administrative accounts
• Review existing coupon entries and remove any unauthorized or unexpected discount codes

Patch Information

Consult the Patchstack Vulnerability Report for vendor patch status. The advisory identifies all versions up to and including 1.5.5 as vulnerable. Administrators should track vendor releases and apply the patched version as soon as it is available.

Workarounds

• Deactivate the Smart Online Order for Clover plugin until a patched version is installed
• Deploy a Web Application Firewall (WAF) rule that blocks cross-origin POST requests to plugin coupon endpoints
• Configure the web server to validate Referer and Origin headers on requests to /wp-admin/ paths used by the plugin
• Limit administrator access to the WordPress dashboard by IP allowlist where operationally feasible

# Example WAF rule concept (ModSecurity) to block cross-origin POSTs to plugin endpoints
SecRule REQUEST_METHOD "@streq POST" \
  "chain,deny,status:403,id:1003123,msg:'Block cross-origin POST to Clover plugin'"
SecRule REQUEST_URI "@contains /wp-admin/admin.php?page=clover" "chain"
SecRule REQUEST_HEADERS:Referer "!@beginsWith https://your-wordpress-site.example/"