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CVE-2026-55381— InvoiceShelf: IDOR in InvoiceShelf estimate-to-invoice conversion allows any company user to read and tamper with other companies' estimates

Quick assessment

Affected
InvoiceShelf InvoiceShelf
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.

InvoiceShelf 是一款开源的 Web 和移动应用，用于跟踪费用、付款，并生成专业的发票及报价单。在 2.4.0 版本之前， 中的 接口仅验证调用者是否具备“创建发票”的权限，而未对路由绑定的报价单（Estimate）本身进行访问控制。由于路由模型绑定（route-model binding）可以从任何公司解析出对应的报价单，因此，拥有“创建发票”权限的认证用户可以将其他公司的行项目、价格、总额、税费、备注、货币以及客户数据复制到攻击者所在公司的发票中。此外，受害公司所配置的转换操作会触发 方法，从而导致原

CVSS 7.1 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
InvoiceShelf InvoiceShelf < 2.4.0 affected
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I. Basic Information for CVE-2026-55381

Vulnerability Information
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Vulnerability Title
InvoiceShelf: IDOR in InvoiceShelf estimate-to-invoice conversion allows any company user to read and tamper with other companies' estimates
Source: CVE Program / CVE List V5
Vulnerability Description
InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. Prior to version 2.4.0, POST /api/v1/estimates/{estimate}/convert-to-invoice in ConvertEstimateController authorizes only the caller's create-invoice ability and does not authorize access to the route-bound Estimate. Because route-model binding can resolve an estimate from any company, an authenticated user with create-invoice ability can copy another company's line items, prices, totals, taxes, notes, currency, and customer data into an invoice in the attacker's company. The victim company's configured conversion action reaches checkForEstimateConvertAction and can also change or delete the original estimate. This issue is fixed in version 2.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A: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

Affected Products

Vendor Product Affected Versions CPE Subscribe
InvoiceShelf InvoiceShelf < 2.4.0 -

II. Public POCs for CVE-2026-55381

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III. Intelligence Information for CVE-2026-55381

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Patches & Fixes for CVE-2026-55381 (2)

Other References for CVE-2026-55381 (2)

Same Patch Batch · InvoiceShelf · 2026-10-14 · 7 CVEs total

CVE-2026-55383 8.2 HIGH InvoiceShelf: Public EmailLog token type confusion allows cross-company invoice disclosure
CVE-2026-55382 7.6 HIGH InvoiceShelf: Cross-company read/modify/delete of notes via missing company scope in NoteP
CVE-2026-55387 7.2 HIGH InvoiceShelf bulk deletion lacks company scoping
CVE-2026-55386 7.1 HIGH InvoiceShelf ORDER BY SQL injection through orderByField
CVE-2026-55385 6.8 MEDIUM InvoiceShelf: SSRF via unvalidated Gotenberg PDF renderer host in PDF configuration
CVE-2026-55384 5.3 MEDIUM InvoiceShelf trusts client-supplied document totals

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-55381

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