CVE-2026-89064: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-w3hh-7qrr-242f
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CVSS 5.3
CWE-522
Published
Advisory Summary

CVE-2026-89064 is a MODERATE (CVSS 5.3) security vulnerability vulnerability (CWE-522: Insufficiently Protected Credentials) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89064 at a Glance

CVE Identifier CVE-2026-89064
GHSA Identifier GHSA-w3hh-7qrr-242f
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-522: Insufficiently Protected Credentials
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:N/I:L/A:N).

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 None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-89064

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-2026-89064, 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-522: Insufficiently Protected Credentials, where the product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. 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 All-in-One WP Migration and Backup plugin for WordPress is vulnerable to Insufficient Credential Protection in versions up to, and including, 7.110. This is due to the `Ai1wm_Main_Controller::init()` method — registered on the `admin_init` hook, which fires unauthenticated on `admin-ajax.php` and `admin-post.php` requests — reading `$_SERVER['PHP_AUTH_USER']` and `$_SERVER['PHP_AUTH_PW']` from any incoming request and writing them to the `ai1wm_auth_header` option via `update_option()` as a reversible base64-encoded string, with no capability check, nonce verification, `is_user_logged_in()` check, or confirmation that Basic authentication actually succeeded. This makes it possible for unauthenticated attackers to capture into the database, in reversible base64 form, any WordPress Application Password or HTTP Basic credential presented to `/wp-admin/` by a legitimate integration, or to overwrite the stored credential with an attacker-chosen value by sending an anonymous request carrying a crafted `Authorization: Basic` header. This is particularly impactful in environments using WordPress Application Passwords for REST API or third-party integrations, as those credentials are transmitted as HTTP Basic auth to `/wp-admin/` and will be silently harvested via this unauthenticated write path.

References

NVD — CVE-2026-89064 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89064
plugins.trac.wordpress.org/browser/all-in-one-... WEB
https://plugins.trac.wordpress.org/browser/all-in-one-wp-migration/tags/7.110/lib/controller/class-ai1wm-main-controller.php#L1303
plugins.trac.wordpress.org/browser/all-in-one-... WEB
https://plugins.trac.wordpress.org/browser/all-in-one-wp-migration/tags/7.110/lib/controller/class-ai1wm-main-controller.php#L1315
plugins.trac.wordpress.org/browser/all-in-one-... WEB
https://plugins.trac.wordpress.org/browser/all-in-one-wp-migration/tags/7.110/lib/controller/class-ai1wm-main-controller.php#L82
plugins.trac.wordpress.org/changeset WEB
https://plugins.trac.wordpress.org/changeset?reponame=&old=3696427%40all-in-one-wp-migration&new=3696427%40all-in-one-wp-migration
www.wordfence.com/threat-intel/vulner... WEB
https://www.wordfence.com/threat-intel/vulnerabilities/id/5a8737b1-fb68-4609-8474-9395f30c1089?source=cve

Frequently Asked Questions

What is CVE-2026-89064?
CVE-2026-89064 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-522: Insufficiently Protected Credentials.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-89064?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89064?
CVE-2026-89064 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2026-89064?
CVE-2026-89064 is classified under CWE-522: Insufficiently Protected Credentials (The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.).
How can I check Maven dependencies for CVE-2026-89064?
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 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-w3hh-7qrr-242f",
  "modified" : "2026-09-17T03:34:22Z",
  "published" : "2026-09-17T03:34:22Z",
  "aliases" : [ "CVE-2026-89064" ],
  "details" : "The All-in-One WP Migration and Backup plugin for WordPress is vulnerable to Insufficient Credential Protection in versions up to, and including, 7.110. This is due to the `Ai1wm_Main_Controller::init()` method — registered on the `admin_init` hook, which fires unauthenticated on `admin-ajax.php` and `admin-post.php` requests — reading `$_SERVER['PHP_AUTH_USER']` and `$_SERVER['PHP_AUTH_PW']` from any incoming request and writing them to the `ai1wm_auth_header` option via `update_option()` as a reversible base64-encoded string, with no capability check, nonce verification, `is_user_logged_in()` check, or confirmation that Basic authentication actually succeeded. This makes it possible for unauthenticated attackers to capture into the database, in reversible base64 form, any WordPress Application Password or HTTP Basic credential presented to `/wp-admin/` by a legitimate integration, or to overwrite the stored credential with an attacker-chosen value by sending an anonymous request carrying a crafted `Authorization: Basic` header. This is particularly impactful in environments using WordPress Application Passwords for REST API or third-party integrations, as those credentials are transmitted as HTTP Basic auth to `/wp-admin/` and will be silently harvested via this unauthenticated write path.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89064"
  }, {
    "type" : "WEB",
    "url" : "https://plugins.trac.wordpress.org/browser/all-in-one-wp-migration/tags/7.110/lib/controller/class-ai1wm-main-controller.php#L1303"
  }, {
    "type" : "WEB",
    "url" : "https://plugins.trac.wordpress.org/browser/all-in-one-wp-migration/tags/7.110/lib/controller/class-ai1wm-main-controller.php#L1315"
  }, {
    "type" : "WEB",
    "url" : "https://plugins.trac.wordpress.org/browser/all-in-one-wp-migration/tags/7.110/lib/controller/class-ai1wm-main-controller.php#L82"
  }, {
    "type" : "WEB",
    "url" : "https://plugins.trac.wordpress.org/changeset?reponame=&old=3696427%40all-in-one-wp-migration&new=3696427%40all-in-one-wp-migration"
  }, {
    "type" : "WEB",
    "url" : "https://www.wordfence.com/threat-intel/vulnerabilities/id/5a8737b1-fb68-4609-8474-9395f30c1089?source=cve"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-522" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T03:16:32Z"
  }
}