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TI-2026-12141 Aliases CVE-2026-14359GHSA-jg5j-77hp-vqmp

Improper privilege management in YITH WooCommerce Waitlist Premium

Priority MEDIUM 40CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.

Summary

The YITH WooCommerce Waitlist Premium plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 3.35.0. This is due to the add_user_in_waiting_list() function registered on the wp_ajax_yith_wcwtl_add_user action being missing both a capability check and a nonce verification, and using parse_str() + extract() to import attacker-controlled variables from $_POST['params'] that are then passed to wp_create_user() and $user->set_role(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to elevate their privileges to that of an administrator by creating a new user account and assigning it the administrator role.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00442 38th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
YITHYITH WooCommerce Waitlist Premiumup to 3.35.0—No fix listedCNA
  • YITH WooCommerce Waitlist Premium VendorYITH Affected up to 3.35.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-14359
  2. 2026-10-03 Alias added: GHSA-jg5j-77hp-vqmp

References

Other 2

  • TI-2021-02214 An arbitrary file upload vulnerability in the YITH WooCommerce Gift Cards Premium plugin… CVSS 3.1CRITICAL 9.8
  • TI-2022-22325 WordPress YITH WooCommerce Gift Cards Premium Plugin <= 3.19.0 is vulnerable to Arbitrary File Upload CVSS 3.1CRITICAL 9.8
  • TI-2024-07271 YITH WooCommerce Ajax Search < 2.7.1 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
  • TI-2026-57916 WordPress YITH Request a Quote for WooCommerce Premium plugin < 4.46.0 - Broken Access Control vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2024-31668 WordPress YITH WooCommerce Ajax Search plugin <= 2.8.0 - SQL Injection vulnerability CVSS 3.1CRITICAL 9.3
  • TI-2023-27187 WordPress YITH WooCommerce Product Add-Ons Plugin <= 4.3.0 is vulnerable to PHP Object Injection CVSS 3.1CRITICAL 9.1
See all 55 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences