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CVE-2026-15985— Classified Listing - Mobile Number Verification <= 1.6.0 - Unauthenticated Authentication Bypass via Firebase OTP Login

Quick assessment

Affected
RadiusTheme Classified Listing - Mobile Number Verification
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Classified Listing - Mobile Number Verification 插件在所有 1.6.0 及以下版本中存在身份验证绕过漏洞。该漏洞是由于 函数中缺少服务端 Firebase OTP（一次性密码）验证所导致。攻击者无需认证即可通过 Firebase OTP 登录流程，提交任意 OTP 代码和 UID，从而以该插件电话表中注册的任意手机号码对应的用户身份进行登录。成功利用此漏洞需要满足以下条件：OTP 登录功能已启用，且 Firebase 被选为验证网关；此外，攻击者需

CVSS 8.1 · High
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I. Basic Information for CVE-2026-15985

Vulnerability Information
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Vulnerability Title
Classified Listing - Mobile Number Verification <= 1.6.0 - Unauthenticated Authentication Bypass via Firebase OTP Login
Source: CVE Program / CVE List V5
Vulnerability Description
The Classified Listing - Mobile Number Verification plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.6.0. This is due to missing server-side Firebase OTP validation in the process_otp_login() function. This makes it possible for unauthenticated attackers to authenticate as any user with a phone number registered in the plugin's phone table by submitting an arbitrary OTP code and UID through the Firebase OTP login flow. Successful exploitation requires OTP login to be enabled with Firebase selected as the verification gateway, and requires the attacker to know or guess the target account's registered phone number. Administrator account takeover is possible if an administrator account has a phone number registered in the plugin.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选名称进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
RadiusTheme Classified Listing - Mobile Number Verification 0 ~ 1.6.0 -

II. Public POCs for CVE-2026-15985

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III. Intelligence Information for CVE-2026-15985

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Vendor Advisories for CVE-2026-15985 (1)

Vendor Pages for CVE-2026-15985 (1)

IV. Related Vulnerabilities

Same vendor: RadiusTheme
Same weakness: CWE-289

V. Comments for CVE-2026-15985

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