CVE-2026-40570— FreeScout's Missing Authorization in load_customer_info Allows Any Authenticated User to Access Full Customer PII
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I. Basic Information for CVE-2026-40570
Vulnerability Information
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Vulnerability Title
FreeScout's Missing Authorization in load_customer_info Allows Any Authenticated User to Access Full Customer PII
Source: NVD (National Vulnerability Database)
Vulnerability Description
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, the `load_customer_info` action in `POST /conversation/ajax` returns complete customer profile data to any authenticated user without verifying mailbox access. An attacker only needs a valid email address to retrieve all customer PII. Version 1.8.213 fixes the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
FreeScout 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeScout是FreeScout公司的一个使用 PHP（Laravel 框架）构建的超轻量级且功能强大的免费开源帮助台和共享收件箱。 FreeScout 1.8.213之前版本存在安全漏洞，该漏洞源于POST /conversation/ajax中的load_customer_info操作返回完整的客户个人数据而未验证邮箱访问权限，可能导致任何经过身份验证的用户仅凭有效电子邮件地址检索所有客户个人信息。
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 |
|---|---|---|---|---|
| freescout-help-desk | freescout | < 1.8.213 | - |
II. Public POCs for CVE-2026-40570
| # | POC Description | Source Link | Shenlong Link |
|---|
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- Release 1.8.213 · freescout-help-desk/freescout · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-40570
Same Patch Batch · freescout-help-desk · 2026-04-21 · 20 CVEs total
| CVE-2026-41193 | 9.1 CRITICAL | FreeScout has Zip Slip path traversal in module installation that allows arbitrary file wr |
| CVE-2026-40569 | 9.0 CRITICAL | FreeScout's Mass Assignment in Mailbox Connection Settings Enables Silent Email Exfiltrati |
| CVE-2026-40568 | 8.5 HIGH | FreeScout Vulnerable to XSS via Mailbox Signature Due to Incomplete HTML Sanitization |
| CVE-2026-40497 | 8.1 HIGH | FreeScout Vulnerable to CSS Injection via Stored Style Tag in Mailbox Signature (CSRF Toke |
| CVE-2026-40589 | 7.6 HIGH | FreeScout has Customer Edit Cross-Mailbox Email Takeover |
| CVE-2026-41190 | 7.1 HIGH | FreeScout has assigned-only visibility bypass via save_draft that allows hidden conversati |
| CVE-2026-41189 | 7.1 HIGH | FreeScout has assigned-only visibility bypass that allows editing hidden customer-authored |
| CVE-2026-41191 | 7.1 HIGH | FreeScout's signature only mailbox permission allows unauthorized mailbox chat setting cha |
| CVE-2026-40591 | 7.1 HIGH | FreeScout: Improper Authorization in Phone Conversation Creation Enables Cross-Mailbox Hid |
| CVE-2026-41192 | 7.1 HIGH | FreeScout's client-controlled attachment IDs allow deletion of existing conversation attac |
| CVE-2026-40565 | 6.1 MEDIUM | FreeScout has Stored XSS / CSS Injection via linkify() — Unescaped URL in Anchor href |
| CVE-2026-40592 | 5.9 MEDIUM | FreeScout's cross-user undo reply allows mailbox peers to recall another agent's outbound |
| CVE-2026-40567 | 5.8 MEDIUM | FreeScout has HTML Injection in Outgoing Emails via Unsanitized Customer Name in Signature |
| CVE-2026-41194 | 5.4 MEDIUM | FreeScout's Mailbox OAuth disconnect uses a state-changing GET and is CSRFable |
| CVE-2026-41183 | 4.3 MEDIUM | FreeScout allows non-folder conversation queries to disclose assigned-only hidden conversa |
| CVE-2026-40590 | 4.3 MEDIUM | FreeScout's Customer AJAX Create Modifies Hidden Existing Customer |
| CVE-2026-40566 | 4.1 MEDIUM | FreeScout vulnerable to SSRF via IMAP/SMTP Connection Test Endpoints |
| CVE-2026-40498 | FreeScout has Authentication Bypass and Information Disclosure in SystemController via /sy | |
| CVE-2026-40496 | FreeScout has Predictable Attachment Token that Allows Unauthenticated Private File Downlo |
IV. Related Vulnerabilities
Same product: freescout
- CVE-2026-41906
FreeScout: Conversation Change-Customer Cross-Mailbox Author - CVE-2026-41905
FreeScout vulnerable to SSRF via Helper::sanitizeRemoteUrl: - CVE-2026-41904
FreeScout Stored XSS vulnerability in mailbox auto-reply: pa - CVE-2026-41902
FreeScout's user invitation hash never expires: permanent un - CVE-2026-41903
FreeScout IDOR Vulnerability: PERM_EDIT_USERS allows modifyi
Same vendor: freescout-help-desk
- CVE-2026-41906
FreeScout: Conversation Change-Customer Cross-Mailbox Author - CVE-2026-41905
FreeScout vulnerable to SSRF via Helper::sanitizeRemoteUrl: - CVE-2026-41904
FreeScout Stored XSS vulnerability in mailbox auto-reply: pa - CVE-2026-41902
FreeScout's user invitation hash never expires: permanent un - CVE-2026-41903
FreeScout IDOR Vulnerability: PERM_EDIT_USERS allows modifyi
Same weakness: CWE-639
- CVE-2026-8196
JeecgBoot mLogin Endpoint LoginController.java authorization - CVE-2026-42291
SysReptor: Read-write access to personal notes by sharing-li - CVE-2026-44400
MailEnable Enterprise Premium < 10.55 Authorization Bypass v - CVE-2026-42279
solidtime: Time entry update endpoint allows cross-organizat - CVE-2026-42277
Onyx: IDOR in /chat/file/{file_id} allows any authenticated
V. Comments for CVE-2026-40570
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