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TI-2026-59122 Aliases CVE-2026-86407GHSA-wr2r-r9vc-rr7g

User Registration & Membership < 5.2.8 - Unauthenticated User Data Disclosure via Membership Thank You Page

Priority LOW 17CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-200.

Summary

The User Registration & Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its membership confirmation page owns the account named in the request, nor that any registration or purchase has taken place, allowing unauthenticated users to retrieve another user's email address, profile fields, role and membership order details. Exploitation requires the site owner to have added a user smart tag to that page's configurable message, which the shipped default does not contain.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0028 20th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed User Registration & Membership (Unknown): 5.2.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownUser Registration & Membership5.0 to before 5.2.85.2.8Patch availableCNA
  • User Registration & Membership VendorUnknown Affected 5.0 to before 5.2.8 Fixed in 5.2.8 Patch available CNA

Remediation

  • Fix · CNA User Registration & Membership (Unknown) Fixed in 5.2.8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    User Registration & Membership 5.2.8

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-59121 User Registration & Membership < 5.2.8 - Subscriber+ Privilege Escalation via Membership PurchasePriority LOW 35
    • TI-2026-55340 User Registration & Membership < 5.2.8 - Author+ Privilege Escalation to AdministratorPriority LOW 34
    • TI-2026-55341 User Registration & Membership < 5.2.8 - Unauthenticated Open Redirect via Login Redirect ParametersPriority LOW 21
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-86407
  2. 2026-10-03 Alias added: GHSA-wr2r-r9vc-rr7g

References

Exploit 1

Sources

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