CVE-2026-89271— WP-BusinessDirectory <= 4.0.2 - Unauthenticated Arbitrary File Write via uploadFile
Quick assessment
Affected
Unknown WP-BusinessDirectory
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.
WP-BusinessDirectory WordPress 插件（版本低于或等于 4.0.2）中的未授权上传处理器未对保存文件的类型或目标位置进行限制，允许未经身份验证的攻击者将任意内容写入任意位置的文件。不过，在默认的服务器配置下，攻击者无法执行代码。
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Unknown | WP-BusinessDirectory | ≤ 4.0.2 |
affected |
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I. Basic Information for CVE-2026-89271
Vulnerability Information
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Vulnerability Title
WP-BusinessDirectory <= 4.0.2 - Unauthenticated Arbitrary File Write via uploadFile
Source: CVE Program / CVE List V5
Vulnerability Description
The WP-BusinessDirectory WordPress plugin through 4.0.2 does not restrict the type or destination of files saved by an unauthenticated upload handler, allowing unauthenticated attackers to write files with arbitrary content to arbitrary locations, though not to execute code on a default server configuration.
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
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unknown | WP-BusinessDirectory | 0 ~ 4.0.2 | - |
|
II. Public POCs for CVE-2026-89271
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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V. Comments for CVE-2026-89271
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