wiseCampaign <= 1.1.16 — Missing Authorization to Unauthenticated Plugin Configuration Modification via REST API

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under wiseCampaign – WooCommerce Side Cart, BOGO Discounts, Countdown Timer & Exit Intent Popup.
• No admin access? Run a passive check of your site. It reads public files only.
• No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

1. Update to version 1.1.17, or a newer patched version
2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
3. Watch wiseCampaign – WooCommerce Side Cart, BOGO Discounts, Countdown Timer & Exit Intent Popup to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Legion Hunter.

The wiseCampaign – WooCommerce Conversions Made Easy plugin for WordPress is vulnerable to unauthorized modification and disclosure of data due to every one of its REST API endpoints being registered with `permission_callback => '__return_true'` in all versions up to, and including, 1.1.16. This makes it possible for unauthenticated attackers to read and modify the plugin's banner, stockbar, and core settings — including saving/updating banner records, toggling stockbar/feature flags, changing the active banner, and uploading background-image files via wp_handle_upload() — without any nonce or capability check.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

• Advisorywordfence.com

Related CVEs

Timeline

1. Aug 4, 2026

   CVE published

   Severity high, CVSS 7.5

2. Nov 13, 2026

   Record last updated