CVE-2025-1475

Critical

Published: 07 March 2025

Published

07 March 2025

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0013 31.5th percentile

Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-1475 is a critical-severity Improper Authentication (CWE-287) vulnerability in Wordpress (inferred from references). Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 31.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 IA-2 (Identification and Authentication (Organizational Users)) and SI-10 (Information Input Validation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match

prevent

Timely identification, reporting, and correction of flaws in plugins like WPCOM Member directly prevents exploitation of the authentication bypass vulnerability.

SI-10 Information Input Validation good match

prevent

Validating and sanitizing inputs such as the 'user_phone' parameter prevents manipulation that leads to improper authentication during SMS login.

IA-2 Identification and Authentication (Organizational Users) good match

prevent

Requiring robust identification and authentication mechanisms for organizational users mitigates improper verification flaws in login processes like SMS authentication.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1078 Valid Accounts Stealth

Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.

attack.mitre.org →

Why these techniques?

The auth bypass in a public-facing WordPress plugin directly enables exploitation of public-facing applications (T1190) for initial access and abuse of valid accounts (T1078) by allowing login as any user including admins without credentials.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

NVD 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…

Deeper analysisAI

CVE-2025-1475 is an authentication bypass vulnerability affecting the WPCOM Member plugin for WordPress in all versions up to and including 1.7.5. The issue stems from insufficient verification of the 'user_phone' parameter during login processes, specifically when SMS login is enabled. Published on 2025-03-07 with a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), it is mapped to CWE-287 (Improper Authentication).

Unauthenticated attackers can exploit this vulnerability over the network with low complexity and no user interaction required. By manipulating the 'user_phone' parameter, they can log in as any existing user on the site, including administrators, granting full access to the targeted account's privileges if SMS login is enabled.

Mitigation guidance from advisories, including Wordfence's threat intelligence report, recommends updating the WPCOM Member plugin to a patched version beyond 1.7.5. The WordPress plugin trac shows the vulnerability in form-validation.php at line 110 in tag 1.7.1 and a fix in changeset 3248208. Disabling SMS login provides a temporary workaround until patching.