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CVE-2026-12417— SignUp & SignIn <= 1.0.0 - Unauthenticated Privilege Escalation via Weak Password Reset Validation via 'reset_activation_code' Leading to Account Takeover

Quick assessment

Affected
pravel SignUp & SignIn
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.

pravel SignUp & SignIn是pravel个人开发者的一个用户注册与登录功能模块。 pravel SignUp & SignIn 1.0.0及之前版本存在授权问题漏洞，该漏洞源于密码重置验证机制薄弱，导致容易受到身份验证绕过攻击。

CVSS 9.8 · Critical EPSS 0.82% · P57

Affected Version Matrix 1

VendorProduct Version RangeStatus
pravel SignUp & SignIn ≤ 1.0.0 affected
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I. Basic Information for CVE-2026-12417

Vulnerability Information
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Vulnerability Title
SignUp & SignIn <= 1.0.0 - Unauthenticated Privilege Escalation via Weak Password Reset Validation via 'reset_activation_code' Leading to Account Takeover
Source: CVE Program / CVE List V5
Vulnerability Description
The SignUp & SignIn plugin for WordPress is vulnerable to Authentication Bypass via Weak Password Reset Validation leading to Account Takeover in versions up to, and including, 1.0.0. This is due to the `pravel_change_password()` AJAX handler — registered via `wp_ajax_nopriv_pravel_change_password` and therefore accessible to unauthenticated users — performing no nonce verification, no capability check, and only a loose equality check between an attacker-supplied `reset_activation_code` POST parameter and the target user's `forgot_email` user meta value; when a user has never initiated a password reset, `get_user_meta()` returns an empty string that trivially satisfies this check against an omitted or empty attacker-supplied code. This makes it possible for unauthenticated attackers to change the password of any WordPress user, including administrators, by sending a crafted POST request to `admin-ajax.php` with `action=pravel_change_password`, `reset_user_id` set to the target account's user ID, and `new_password_custom` set to an attacker-chosen password. Successful exploitation allows the attacker to authenticate with the newly set password and fully take over the targeted account, achieving administrator-level privilege escalation on the affected site.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
忘记口令恢复机制弱
Source: CVE Program / CVE List V5
Vulnerability Title
pravel SignUp & SignIn 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pravel SignUp & SignIn是pravel个人开发者的一个用户注册与登录功能模块。 pravel SignUp & SignIn 1.0.0及之前版本存在授权问题漏洞，该漏洞源于密码重置验证机制薄弱，导致容易受到身份验证绕过攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
pravel SignUp & SignIn 0 ~ 1.0.0 -

II. Public POCs for CVE-2026-12417

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III. Intelligence Information for CVE-2026-12417

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News Coverage for CVE-2026-12417 (1)

Vendor Pages for CVE-2026-12417 (1)

Other References for CVE-2026-12417 (1)

IV. Related Vulnerabilities

Same vendor: pravel
Same weakness: CWE-640