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CVE-2026-13457— InstaWP Connect <= 0.1.3.6 - Unauthenticated Cryptographic Key Disclosure

Quick assessment

Affected
instawp InstaWP Connect – 1-click WP Staging & Migration
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.

WordPress InstaWP Connect是WordPress基金会开源的一款提供站点连接与部署能力的CMS插件。 WordPress InstaWP Connect 0.1.3.6及之前版本存在任意文件上传漏洞，该漏洞源于插件将加密选项文件存储在wp-content/instawpbackups/目录中，且未部署index.php或.htaccess阻止目录列表，暴露了migrate_key，可能导致未经身份验证的攻击者获取数据库访问详情和api_signature，进而实现远程代码执行。

CVSS 7.5 · High EPSS 0.85% · P57

Affected Version Matrix 1

VendorProduct Version RangeStatus
instawp InstaWP Connect – 1-click WP Staging & Migration ≤ 0.1.3.6 affected
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I. Basic Information for CVE-2026-13457

Vulnerability Information
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Vulnerability Title
InstaWP Connect <= 0.1.3.6 - Unauthenticated Cryptographic Key Disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
The InstaWP Connect – 1-click WP Staging & Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 0.1.3.6 via the (top-level script) function. This is due to the plugin stores its encrypted options file as options-{migrate_key}.txt in wp-content/instawpbackups/ without deploying an index.php or .htaccess to prevent directory listing, exposing the 40-character migrate_key on Apache servers with directory indexing enabled, which allows an attacker to derive the AES-256-CBC passphrase via SHA256(migrate_key), decrypt the options file to recover the api_signature. This makes it possible for unauthenticated attackers to get the database access details and api_signature. Exploitation requires the target WordPress site to be hosted on Apache with directory listing enabled (Options +Indexes) for the wp-content/instawpbackups/ directory, and time limited because it can only be exploited during the migration period.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress InstaWP Connect 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress InstaWP Connect是WordPress基金会开源的一款提供站点连接与部署能力的CMS插件。 WordPress InstaWP Connect 0.1.3.6及之前版本存在任意文件上传漏洞，该漏洞源于插件将加密选项文件存储在wp-content/instawpbackups/目录中，且未部署index.php或.htaccess阻止目录列表，暴露了migrate_key，可能导致未经身份验证的攻击者获取数据库访问详情和api_signature，进而实现远程代码执行。
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
instawp InstaWP Connect – 1-click WP Staging & Migration 0 ~ 0.1.3.6 -

II. Public POCs for CVE-2026-13457

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III. Intelligence Information for CVE-2026-13457

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News Coverage for CVE-2026-13457 (1)

IV. Related Vulnerabilities

Same product: InstaWP Connect – 1-click WP Staging & Migration
Same vendor: instawp
Same weakness: CWE-434

V. Comments for CVE-2026-13457

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