SEPTEMBER 15, 2026
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Case File

CVE-2026-80099

HIGH · CVSS 8.8 EPSS 0.51% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-09 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

Several Newfold plugins are susceptible to an authentication bypass vulnerability due to a flaw in the `authenticate()` method of the bundled wp-module-data module. This allows unauthenticated attackers to generate a valid Bearer token offline, potentially granting them full administrator access and the ability to perform arbitrary REST API operations, including the creation of new admin accounts. Organizations using the affected versions of the Crazy Domains, Web, Hostgator, or Bluehost plugins should prioritize patching this vulnerability to prevent potential site takeovers.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-80099
Severity
HIGH
CVSS
8.8
EPSS
0.51%

Original NVD Description

Several Newfold plugins are vulnerable to Authentication Bypass. The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method — registered on the `rest_authentication_errors` filter and therefore evaluated for every unauthenticated REST API request — performs an HMAC-style Bearer token comparison that degenerates when `HiiveConnection::get_auth_token()` returns `false`: PHP coerces `strrev(false)` to `strrev('')`, collapsing the secret salt to the publicly known constant `hash('sha256', '') = e3b0c44...`, while all remaining hash inputs (HTTP method, request URL, raw request body, and the `X-Timestamp` header) remain fully attacker-controlled. This makes it possible for unauthenticated attackers to compute a valid Bearer token entirely offline, pass the token equality check, and have `wp_set_current_user()` invoked against the first administrator returned by `get_users(['role' => 'administrator'])`, granting full administrator-level access and enabling arbitrary REST API operations such as creating new administrator accounts and achieving complete site takeover. Vulnerable versions are WP Plugin Crazy Domains (<= 2.5.2), WP Plugin Web (<= 2.3.4), WP Plugin Hostgator (<= 3.1.0), WP Plugin Bluehost (<= 4.17.1). The affected module is vulnerable in versions up to, and including, 2.9.4.