WooCommerce Subscription vulnerabilities
Plugin slug woocommerce-subscriptions · 6 known vulnerabilities · latest disclosed 2026-08-14 · WordPress.org page
Every listed vulnerability has a fix. Version 9.1.0 or later is not affected by any of them. If your site runs an older version, update it.
1 of 6 rated high or critical (CVSS 7 or more).
Known vulnerabilities in WooCommerce Subscription
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 5.3 | < 9.1.0 | 9.1.0 | CVE-2026-18391 | 2026-08-14 | Advisory |
| Medium 4.3 | < 5.8.0 | 5.8.0 | CVE-2023-50850 | 2024-01-17 | Advisory |
| Medium 4.3 | < 4.6.0 | 4.6.0 | none | 2023-09-11 | Advisory |
| Medium 6.5 | <= 5.1.2 | 5.1.3 | CVE-2023-35914 | 2023-06-19 | Advisory |
| High 8.3 | < 3.0.3 | 3.0.3 | none | 2020-04-02 | Advisory |
| Medium 6.1 | < 2.6.3 | 2.6.3 | CVE-2019-18834 | 2019-03-11 | Advisory |
Check if a site is affected
Enter a site address to see which version of WooCommerce Subscription and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the WooCommerce Subscription plugin safe to use?
All 6 known issues are fixed in current versions (9.1.0 or later). Keeping it updated is what matters.
How do I check which version of WooCommerce Subscription my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.