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CVE-2026-76876— Craftplan < 0.5.1 Broken Access Control Information Disclosure via Settings API

Quick assessment

Affected
puemos craftplan
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.

Craftplan 在 0.5.1 版本之前存在一个不安全的访问控制漏洞，允许未认证的攻击者通过利用 Settings 资源上无条件授权的策略来读取敏感凭证。由于该读取策略使用了始终允许的授权检查，从而绕过了所有身份验证机制，攻击者可以通过向设置 API 端点发送带有有效记录 ID 的 GET 请求，获取解密的 SMTP 密码、邮件 API 密钥以及邮件 API 密钥。

CVSS 5.9 · Medium EPSS 0.28% · P21

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
puemos craftplan < 0.5.1 affected
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I. Basic Information for CVE-2026-76876

Vulnerability Information
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Vulnerability Title
Craftplan < 0.5.1 Broken Access Control Information Disclosure via Settings API
Source: CVE Program / CVE List V5
Vulnerability Description
Craftplan before 0.5.1 contains a broken access control vulnerability that allows unauthenticated attackers to read sensitive credentials by exploiting an unconditional authorization policy on the Settings resource. Attackers can send a GET request to the settings API endpoint with a valid record ID to retrieve decrypted SMTP passwords, email API keys, and email API secrets due to the read policy using an always-allow authorization check that bypasses all identity verification.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
puemos craftplan 0 ~ 0.5.1 -

II. Public POCs for CVE-2026-76876

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III. Intelligence Information for CVE-2026-76876

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Patches & Fixes for CVE-2026-76876 (1)

Vendor Advisories for CVE-2026-76876 (1)

Other References for CVE-2026-76876 (1)

IV. Related Vulnerabilities

Same weakness: CWE-862

V. Comments for CVE-2026-76876

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