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Plugin · advanced-ip-blocker
Advanced IP Blocker
2 known vulnerabilities on record. Add your version above to see which ones affect you.
Oct 10, 2026Advanced IP Blocker: Authentication BypassCVE-2026-104732 · affects up to 8.13.13 · reported by WordfenceCritical 9.8
The Advanced IP Blocker plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 8.13.13 The vulnerability exists because `handle_login_action()` performs no server-side check — via transient, session marker, or equivalent — that a requester completed step-1 password authentication before processing a step-2 TOTP submission for the POSTed `user_id`; compounding this, an error branch in the function unconditionally mints a fresh `advaipbl-2fa-interim-{user_id}` nonce and delivers it in a `Location` header to any unauthenticated caller, after which `display_2fa_login_form_step_2()` renders a valid `advaipbl-2fa-verify-{user_id}` nonce in HTML — both nonces computed against a fixed `uid=0` empty-session context and therefore fully reusable by the attacker across subsequent requests. This makes it possible for unauthenticated attackers to bypass authentication entirely for any 2FA-enabled account, including administrators, by brute-forcing an unthrottled 6-digit TOTP code (no attempt counter, no account lockout, and no `wp_login_failed` firing) and receiving a fully authenticated session cookie via `wp_set_auth_cookie` without ever supplying the
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
May 27, 2026Advanced IP Blocker: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2026-42739 · affects up to 8.10.7 · reported by PatchstackHigh 7.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in IniLerm Advanced IP Blocker advanced-ip-blocker allows DOM-Based XSS.This issue affects Advanced IP Blocker: from n/a through <= 8.10.7.
Versions are matched against the affected ranges published with each record. A plugin can ship a fix under its own numbering, so if something looks off, check the linked record. Want the whole site checked at once? Run the free website check.
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