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Description

The Tiare Membership plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.2. This is due to the 'tiare_membership_init_rest_api_register' function not restricting what user roles a user can register with. This makes it possible for unauthenticated attackers to supply the 'administrator' role during registration and gain administrator access to the site.

PUBLISHED Reserved 2025-11-22 | Published 2025-11-27 | Updated 2025-11-28 | Assigner Wordfence




CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-269 Improper Privilege Management

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-11-26:Disclosed

Credits

Ismail Syaleh finder

References

www.wordfence.com/...-1fba-4c93-b3fa-acfdd5b19410?source=cve

themeforest.net/...-vendor-directory-theme/26589165?s_rank=1

cve.org (CVE-2025-13540)

nvd.nist.gov (CVE-2025-13540)

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