CVE-2025-1475: CWE-287 Improper Authentication in whyun WPCOM Member
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.
AI Analysis
Technical Summary
CVE-2025-1475 is an authentication bypass vulnerability in the WPCOM Member plugin for WordPress, affecting all versions up to and including 1.7.5. The issue arises from insufficient verification of the 'user_phone' parameter during the login process, enabling unauthenticated attackers to impersonate any user on the site if SMS login is enabled. This vulnerability is categorized under CWE-287 (Improper Authentication) and has a CVSS 3.1 base score of 9.8, indicating critical severity with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an unauthenticated attacker to bypass authentication controls and log in as any user, including administrators. This can lead to full site compromise, data theft, unauthorized changes, and denial of service. The vulnerability affects the confidentiality, integrity, and availability of the affected WordPress site.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, it is recommended to disable SMS login functionality in the WPCOM Member plugin to prevent exploitation. Monitor vendor channels for updates and apply patches promptly once available.
CVE-2025-1475: CWE-287 Improper Authentication in whyun WPCOM Member
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-1475 is an authentication bypass vulnerability in the WPCOM Member plugin for WordPress, affecting all versions up to and including 1.7.5. The issue arises from insufficient verification of the 'user_phone' parameter during the login process, enabling unauthenticated attackers to impersonate any user on the site if SMS login is enabled. This vulnerability is categorized under CWE-287 (Improper Authentication) and has a CVSS 3.1 base score of 9.8, indicating critical severity with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an unauthenticated attacker to bypass authentication controls and log in as any user, including administrators. This can lead to full site compromise, data theft, unauthorized changes, and denial of service. The vulnerability affects the confidentiality, integrity, and availability of the affected WordPress site.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, it is recommended to disable SMS login functionality in the WPCOM Member plugin to prevent exploitation. Monitor vendor channels for updates and apply patches promptly once available.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-02-19T16:29:36.050Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 699f6b12b7ef31ef0b54dcf6
Added to database: 2/25/2026, 9:35:14 PM
Last enriched: 4/9/2026, 9:22:58 PM
Last updated: 4/12/2026, 3:44:29 PM
Views: 11
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