Vulnerability in All-in-One WP Migration and Backup (WordPress plugin) (CVE-2026-89064)
Summary
Vulnerability in All-in-One WP Migration and Backup (WordPress plugin) (CVE-2026-89064). Risk of unauthorized operations or information disclosure. Exploitable via admin_init.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-89064 has been found in All-in-One WP Migration and Backup (WordPress plugin).
Attackers can target a specific entry point like admin_init over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 5.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "All-in-One WP Migration and Backup (WordPress plugin) CVE-2026-89064" on the vendor's site.
CVE-2026-89064 (All-in-One WP Migration and Backup (WordPress plugin)) — CWE-522 / CVSS v3 5.3
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: admin_init / ai1wm_auth_header
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-522) exists in All-in-One WP Migration and Backup (WordPress plugin). Attackers reach the vulnerable code path via admin_init without authentication.
Check the vendor advisory for the affected versions of All-in-One WP Migration and Backup (WordPress plugin). Attack surface: admin_init / ai1wm_auth_header.
Severity: Medium (CVSS 5.3/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで All-in-One WP Migration and Backup (WordPress plugin) を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。