CVE-2026-89324— Basel Post Types 1.18 未认证身份验证绕过漏洞
一分钟漏洞结论
影响对象
XTemos Basel Post Types
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
WordPress 的 Basel Post Types 插件在所有 1.18 及更早版本中存在认证绕过漏洞。该漏洞源于 函数中对 的 调用存在缺少引号的编码错误，导致 PHP 将常量值而非常量名作为参数进行求值，从而使该检查始终失败，并永久回退到硬编码的静态盐值 。该盐值在主题源代码中公开可见。由于该盐值为静态且已知，攻击者可以完全离线计算出有效的 Opauth 签名，并向由 处理的未认证初始化钩子端点提交伪造的 回调请求。这使得未认证的攻击者能够通过伪造与已知目标账户邮箱地址绑定的回调，冒充任何现有 WordP
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一、 漏洞 CVE-2026-89324 基础信息
漏洞信息
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Vulnerability Title
Basel Post Types <= 1.18 - Unauthenticated Authentication Bypass via Forged Opauth Callback Signature with Hardcoded Fallback Salt
来源: CVE Program / CVE List V5
Vulnerability Description
The Basel Post Types plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.18. The vulnerability exists because a missing-quotes coding error in the defined() call for SECURE_AUTH_SALT inside BASEL_Auth::get_config() causes PHP to evaluate the constant's value rather than its name, making the check always fail and permanently falling back to the static hardcoded salt 2NlBUibcszrVtNmDnxqDbwCOpLWq91eatIz6O1O that is publicly visible in the theme source code; because this salt is static and known, an attacker can compute a valid Opauth signature entirely offline and submit a forged ?opauth callback to the unauthenticated init hook endpoint processed by register_or_login. This makes it possible for unauthenticated attackers to authenticate as any existing WordPress user, including administrators, by forging a callback tied to a known target account email address — bypassing all password verification, multi-factor authentication, and ownership checks, and receiving a fully authenticated session cookie via wc_set_customer_auth_cookie(). Exploitation requires WooCommerce to be active and at least one Basel social-login provider (Facebook, Google, or VKontakte) to be configured with a valid app_id and app_secret in the theme settings.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| XTemos | Basel Post Types | 0 ~ 1.18 | - |
|
二、漏洞 CVE-2026-89324 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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