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CVE-2025-64105— FOSSBilling: IDOR Vulnerability in Support Ticket Creation

Quick assessment

Affected
FOSSBilling FOSSBilling
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.

fossbilling是fossbilling团队开源的一种高效计费和客户管理方案。 FOSSBilling 0.6.21版本至0.7.2版本存在授权问题漏洞，该漏洞源于工单创建流程未验证订单所有权，可能导致通过构造请求将工单关联至其他客户的订单，影响完整性和机密性。

AI Predicted 6.5 Difficulty: Trivial EPSS 0.36% · P29

Possible ATT&CK Techniques 1 AI

T1552 · Unsecured Credentials

Affected Version Matrix 1

VendorProduct Version RangeStatus
FOSSBilling FOSSBilling >= 0.6.21, < 0.8.0 affected
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I. Basic Information for CVE-2025-64105

Vulnerability Information
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Vulnerability Title
FOSSBilling: IDOR Vulnerability in Support Ticket Creation
Source: CVE Program / CVE List V5
Vulnerability Description
FOSSBilling is a billing and client management system that automates invoicing, payments, and communication for online service businesses. Versions 0.6.21 through 0.7.2 are vulnerable to IDOR through the support ticket creation workflow. By manipulating rel_id when rel_type=order, an authenticated client can create a support ticket that references another client's order they do not own. The ticketCreateForClient() method accepted rel_id without verifying order ownership for non-upgrade tasks, allowing clients to link a new ticket to another client's order by crafting the request. No cron task automatically processes cancel/upgrade requests from ticket relations; staff action is required. This affects integrity and confidentiality: staff could be misled into acting on the wrong order (e.g., cancellation or upgrade requests). While there is no client-to-client order data exposure, order IDs may appear in ticket context. This issue has been fixed in version 0.8.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
FOSSBilling 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
fossbilling是fossbilling团队开源的一种高效计费和客户管理方案。 FOSSBilling 0.6.21版本至0.7.2版本存在授权问题漏洞，该漏洞源于工单创建流程未验证订单所有权，可能导致通过构造请求将工单关联至其他客户的订单，影响完整性和机密性。
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
FOSSBilling FOSSBilling >= 0.6.21, < 0.8.0 -

II. Public POCs for CVE-2025-64105

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III. Intelligence Information for CVE-2025-64105

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Vendor Advisories for CVE-2025-64105 (1)

Vendor Pages for CVE-2025-64105 (1)

Same Patch Batch · FOSSBilling · 2026-06-23 · 4 CVEs total

CVE-2026-27604 FOSSBilling: Improper API Role Validation (system) Enables Unauthenticated Access to Privi
CVE-2026-28496 FOSSBilling: Server-side template injection in Twig template rendering enables information
CVE-2026-23513 FOSSBilling: Broken Authorization in Client Transaction and Order Listings

IV. Related Vulnerabilities

Same product: FOSSBilling
Same vendor: FOSSBilling
Same weakness: CWE-639

V. Comments for CVE-2025-64105

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