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TI-2025-01268 Aliases CVE-2025-1475GHSA-hrhc-cx9f-g4q6

WPCOM Member <= 1.7.5 - Authentication Bypass via 'user_phone'

Priority MEDIUM 50CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
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-287.

Summary

The WPCOM Member plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.7.5. This is due to insufficient verification on the 'user_phone' parameter when logging in. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if SMS login is enabled.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00647 51st 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
whyunWPCOM Memberup to 1.7.5—No fix listedCNA
  • WPCOM Member Vendorwhyun Affected up to 1.7.5 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-2025-1475
  2. 2026-10-03 Alias added: GHSA-hrhc-cx9f-g4q6
  3. 2026-10-19 EPSS moved to the 50th–90th percentile

References

Other 3

  • TI-2026-70265 Authentication bypass in WPCOM Member plugin social-login callback CVSS 3.1CRITICAL 9.8
  • TI-2025-10929 WPCOM Member <= 1.7.14 - Authenticated (Contributor+) Local File Inclusion via Shortcode CVSS 3.1HIGH 8.8
  • TI-2025-12793 WPCOM Member <= 1.7.16 - Authentication Bypass via Weak OTP CVSS 3.1HIGH 8.1

Sources

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