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TI-2025-12371 Aliases CVE-2025-13540GHSA-mwc6-m875-pf49

Tiare Membership <= 1.2 - Unauthenticated Privilege Escalation

Priority MEDIUM 49CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
None
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 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00374 31st 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
Yes
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
Mikado-ThemesTiare Membershipup to 1.2—No fix listedCNA
  • Tiare Membership VendorMikado-Themes Affected up to 1.2 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-2025-13540
  2. 2026-10-03 Alias added: GHSA-mwc6-m875-pf49

References

  • TI-2025-01400 Qi Blocks < 1.4 - Contributor+ Stored XSS via ToC Block CVSS 3.1MEDIUM 5.4
  • TI-2025-01399 Qi Blocks < 1.4 - Contributor+ Stored XSS vi Countdown Block CVSS 3.1MEDIUM 5.4
  • TI-2025-01398 Qi Blocks < 1.4 - Contributor+ Stored XSS via Counter Block CVSS 3.1MEDIUM 5.4
  • TI-2024-11397 Biagiotti Membership <= 1.0.2 - Authentication Bypass via biagiotti_membership_check_facebook_user CVSS 3.1CRITICAL 9.8
  • TI-2026-46716 WordPress Qode Tours plugin <= 3.1.3.1 - SQL Injection vulnerability CVSS 3.1CRITICAL 9.3
  • TI-2023-25948 WordPress Qode Essential Addons Plugin <= 1.5.2 is vulnerable to Remote Code Execution (RCE) CVSS 3.1CRITICAL 9.9
See all 123 →

Sources