CVE-2025-66390
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2025-66390
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Microsoft Azure API Management through 2025-10-17, when self-service signup (username/password Basic Authentication) is enabled in Tenant A, an attacker can reuse the registration flow by changing the hostname or tenant identifier to Tenant B, even when Tenant B has signup disabled at the UI level. In other words, disabling signup in the UI does not disable the underlying API endpoint (which still accepts cross-tenant requests based on the Host header). NOTE: The supplier states that they evaluated the report and determined it did not cross a security boundary (i.e., the observed behavior was a configuration/state issue rather than an exploitable product vulnerability affecting tenant isolation). NOTE: The supplier evaluated this report and determined that it did not cross a security boundary (i.e., the observed behavior was a configuration/state issue rather than an exploitable product vulnerability affecting tenant isolation).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Azure API Management 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Microsoft Azure API Management是美国Microsoft公司的一款API管理平台。 Microsoft Azure API Management 2025-10-17及之前版本存在安全漏洞，该漏洞源于当租户A启用自助注册（用户名/密码基本身份验证）时，攻击者可通过更改主机名或租户标识符为租户B来重用注册流程，即使租户B在UI级别已禁用注册功能，即禁用UI注册功能并未禁用底层API端点（该端点仍根据Host标头接受跨租户请求）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2025-66390
| # | POC Description | Source Link | Shenlong Link |
|---|
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Proof of Concept for CVE-2025-66390 (2)
Same Patch Batch · n/a · 2026-07-21 · 18 CVEs total
| CVE-2026-16489 | 5.3 MEDIUM | jsforce SFDX Connection Registry sfdx.js _execCommand os command injection |
| CVE-2026-16266 | 4.0 MEDIUM | Long Shot Labs mongo-object 输入验证错误漏洞 |
| CVE-2026-30631 | bytebot 安全漏洞 | |
| CVE-2026-30633 | Knowns 安全漏洞 | |
| CVE-2026-52475 | AIFlowy 安全漏洞 | |
| CVE-2026-52470 | Streamax Crocus 安全漏洞 | |
| CVE-2026-52472 | Wgcloud 安全漏洞 | |
| CVE-2026-52474 | AIFlowy 安全漏洞 | |
| CVE-2026-52476 | AIFlowy 安全漏洞 | |
| CVE-2026-52469 | Streamax Crocus 安全漏洞 | |
| CVE-2026-30632 | Knowns 安全漏洞 | |
| CVE-2026-50758 | DayuanJiang next-ai-draw-io 安全漏洞 | |
| CVE-2026-50759 | exo 安全漏洞 | |
| CVE-2026-50756 | DayuanJiang next-ai-draw-io 安全漏洞 | |
| CVE-2026-50757 | DayuanJiang next-ai-draw-io 安全漏洞 | |
| CVE-2026-50755 | DayuanJiang next-ai-draw-io 安全漏洞 | |
| CVE-2025-68640 | Apple Find My backend service 安全漏洞 |
IV. Related Vulnerabilities
Same vendor: n/a
V. Comments for CVE-2025-66390
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