CVE-2026-12417: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-w6gx-c4x9-qjp2
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CVSS 9.8
CWE-640
Published
Advisory Summary

CVE-2026-12417 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (CWE-640: Weak Password Recovery Mechanism for Forgotten Password) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-12417 at a Glance

CVE Identifier CVE-2026-12417
GHSA Identifier GHSA-w6gx-c4x9-qjp2
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-640: Weak Password Recovery Mechanism for Forgotten Password
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-12417

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-12417, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-640: Weak Password Recovery Mechanism for Forgotten Password, where the product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

References

NVD — CVE-2026-12417 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12417
plugins.trac.wordpress.org/browser/signup-sign... WEB
https://plugins.trac.wordpress.org/browser/signup-signin/tags/1.0.0/lib/function.php#L222
plugins.trac.wordpress.org/browser/signup-sign... WEB
https://plugins.trac.wordpress.org/browser/signup-signin/tags/1.0.0/lib/function.php#L229
plugins.trac.wordpress.org/browser/signup-sign... WEB
https://plugins.trac.wordpress.org/browser/signup-signin/tags/1.0.0/lib/function.php#L38
www.wordfence.com/threat-intel/vulner... WEB
https://www.wordfence.com/threat-intel/vulnerabilities/id/c0a617fc-da3d-4828-b027-44093dd11769?source=cve

Frequently Asked Questions

What is CVE-2026-12417?
CVE-2026-12417 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-640: Weak Password Recovery Mechanism for Forgotten Password.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-12417?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-12417?
CVE-2026-12417 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-12417?
CVE-2026-12417 is classified under CWE-640: Weak Password Recovery Mechanism for Forgotten Password (The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.).
How can I check Maven dependencies for CVE-2026-12417?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
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  "id" : "GHSA-w6gx-c4x9-qjp2",
  "modified" : "2026-06-24T09:30:45Z",
  "published" : "2026-06-24T09:30:45Z",
  "aliases" : [ "CVE-2026-12417" ],
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
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  }, {
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  }, {
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  } ],
  "database_specific" : {
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    "severity" : "CRITICAL",
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    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-24T07:16:26Z"
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}