InvoiceShelf up to 2.3.3 Bulk-Delete Request Validation privileges management

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k1.21

Summaryinfo

A vulnerability was found in InvoiceShelf up to 2.3.3. It has been rated as problematic. This vulnerability affects the function DeleteCustomersRequest/DeleteEstimatesRequest/DeleteExpensesRequest/DeleteInvoiceRequest/DeleteItemsRequest/DeletePaymentsRequest/DeleteUserRequest of the component Bulk-Delete Request Validation. Performing a manipulation results in privileges management. This vulnerability is reported as CVE-2026-55387. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in InvoiceShelf up to 2.3.3. This affects the function DeleteCustomersRequest/DeleteEstimatesRequest/DeleteExpensesRequest/DeleteInvoiceRequest/DeleteItemsRequest/DeletePaymentsRequest/DeleteUserRequest of the component Bulk-Delete Request Validation. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on integrity, and availability. The summary by CVE is:

InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. In version 2.3.3 and earlier, InvoiceShelf bulk-delete request validation accepts record identifiers without consistently binding them to the authenticated user's company_id. The affected DeleteCustomersRequest, DeleteEstimatesRequest, DeleteExpensesRequest, DeleteInvoiceRequest, DeleteItemsRequest, DeletePaymentsRequest, and DeleteUserRequest validators check that identifiers exist but do not consistently check tenant ownership. An authenticated user can submit another company's identifier and delete cross-company records. This vulnerability is fixed in 2.4.0.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-55387 since 06/16/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 2.4.0 eliminates this vulnerability.

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Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: InvoiceShelf 2.4.0

Timelineinfo

06/16/2026 CVE reserved
10/14/2026 +120 days Advisory disclosed
10/14/2026 +0 days VulDB entry created
10/14/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-55387 (🔒)
GCVE (CVE): GCVE-0-2026-55387
GCVE (VulDB): GCVE-100-420357

Entryinfo

Created: 10/14/2026 21:53
Changes: 10/14/2026 21:53 (67)
Complete: 🔍
Cache ID: 216::103

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