🔴 严重 | CVE-2026-15013 — The SAML Single Sign On – SSO Login plugin for Wor...
🔴 《严重安全漏洞：CVE-2026-15013》
CVSS 评分: 严重（9.8） 状态: Received 发布时间: 2026-07-16
漏洞描述
The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass via SAML Signature Algorithm Confusion in all versions up to, and including, 5.4.3. The vulnerability exists because Mo_SAML_Utilities::mo_saml_cast_key() reads the SignatureMethod Algorithm attribute directly from the attacker-controlled SAMLResponse parameter rather than enforcing the locally configured algorithm, causing the plugin to recast the IdP's RSA public key as an HMAC-SHA1 shared secret and validate the forged signature against it. This makes it possible for unauthenticated attackers to forge a SAML assertion targeting any WordPress account — including administrators — obtain valid WordPress authentication cookies, and achieve full administrator-level account takeover.
🔍 技术细节
| 字段 | 值 |
|---|---|
| CVE ID | CVE-2026-15013 |
| CVSS 评分 | 9.8 🔴 |
| 严重程度 | 严重 |
| CVSS 向量 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CWE 分类 | CWE-347 |
| 发布时间 | 2026-07-16 |
| 最后更新 | 2026-07-16 |
| 状态 | Received |
| 数据来源 | security@wordfence.com |