Tiare Membership <= 1.2 - Unauthenticated Privilege Escalation

2025-11-26 16:25

シルAsuna

Strategic Overview

Status

Patched in 1.3

Affected PluginTiare Membership

Affected Version<= 1.2

CVSS9.8Critical

CVECVE-2025-13540

View all Tiare Membership vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 1.3, or a newer patched version --- IDENTIFIER: CWE-269 (Improper Privilege Management) The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

External References

https://www.cve.org/CVERecord?id=CVE-2025-13540 https://www.wordfence.com/threat-intel/vulnerabilities/id/6cf01a38-1fba-4c93-b3fa-acfdd5b19410

CVSS Vector

9.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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