Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-80099— Various Newfold Plugins Various Versions - Unauthenticated Authentication Bypass via Bearer Token Validation with Empty Secret

Quick assessment

Affected
Newfold WP Plugin Web
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

多个 Newfold 插件存在认证绕过（Authentication Bypass）漏洞。 该漏洞的根源在于这些插件内置了 模块。在该模块中， 方法被注册在 过滤器上，因此会在每一个未认证的 REST API 请求中执行。该方法执行了一种类似 HMAC 的 Bearer 令牌比较，但当 返回 时，该比较会发生“退化”：PHP 将 强制转换为 ，导致原本用于加密的私有盐值退化为公开已知的常量 （即 ）。与此同时，其余的哈希输入项（HTTP 方法、请求 URL、原始请求体以及 头部）完全由攻击者控制。 这意味着未认证的

CVSS 8.8 · High
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-80099

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Various Newfold Plugins Various Versions - Unauthenticated Authentication Bypass via Bearer Token Validation with Empty Secret
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Newfold WP Plugin Web 0 ~ 2.3.5 -
Newfold WP Plugin Crazy Domains 0 ~ 2.5.2 -
Newfold WP Module Data 0 ~ 2.9.7 -
Newfold WP Plugin Hostgator 0 ~ 3.2.0 -
Newfold WP Plugin Bluehost 0 ~ 4.19.0 -

II. Public POCs for CVE-2026-80099

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-80099

请登录查看更多情报信息。

Other References for CVE-2026-80099 (9)

IV. Related Vulnerabilities

Same weakness: CWE-287

V. Comments for CVE-2026-80099

No comments yet

Leave a comment