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CVE-2026-71505— Dolibarr < 24.0.0 REST API Broken Object-Level Authorization via Third-Party Write Route

Quick assessment

Affected
Dolibarr dolibarr
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.

Dolibarr 24.0.0 之前的版本中，REST API 的第三方网站账户写入路由存在一个不安全的对象级授权漏洞。该漏洞允许拥有创建第三方权限的已认证攻击者，绕过仅在读取路由中执行的逐对象访问检查，从而覆盖任意公司的 WebPortal 密码。攻击者可以通过写入端点替换受害公司公司的 WebPortal 密码，使用该密码以该公司身份进行认证，进而访问其发票数据，并且还能从 API 响应中获取受害公司之前的密码验证器。

CVSS 7.1 · High EPSS 0.23% · P14

Possible ATT&CK Techniques 1 AI

T1136.003 · Cloud Account

Affected Version Matrix 1

VendorProduct Version RangeStatus
Dolibarr dolibarr < 24.0.0 affected
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I. Basic Information for CVE-2026-71505

Vulnerability Information
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Vulnerability Title
Dolibarr < 24.0.0 REST API Broken Object-Level Authorization via Third-Party Write Route
Source: CVE Program / CVE List V5
Vulnerability Description
Dolibarr before 24.0.0 contains a broken object-level authorization vulnerability in the REST API third-party site account write routes that allows authenticated attackers with third-party creation rights to overwrite the WebPortal password of any company by bypassing per-object access checks that are only enforced on read routes. Attackers can replace the victim company's WebPortal password through the write endpoint, authenticate as that company to access its invoice data, and also obtain the victim's previous password verifier from the API response.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/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
Dolibarr dolibarr 0 ~ 24.0.0 -

II. Public POCs for CVE-2026-71505

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III. Intelligence Information for CVE-2026-71505

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Patches & Fixes for CVE-2026-71505 (1)

Vendor Advisories for CVE-2026-71505 (1)

Proof of Concept for CVE-2026-71505 (1)

Vendor Pages for CVE-2026-71505 (1)

Same Patch Batch · Dolibarr · 2026-08-24 · 11 CVEs total

CVE-2026-71506 8.1 HIGH Dolibarr < 24.0.0 Payments REST API Improper Authorization via Delete Endpoint
CVE-2026-71504 8.1 HIGH Dolibarr < 24.0.0 Members REST API Improper Authorization via Password Reset
CVE-2026-71511 6.5 MEDIUM Dolibarr < 24.0.0 Members REST API Sensitive Data Exposure via Member Endpoints
CVE-2026-71510 6.5 MEDIUM Dolibarr < 24.0.0 Users REST API SQL Injection via filter parameter
CVE-2026-71508 6.5 MEDIUM Dolibarr < 24.0.0 REST API Improper Authorization via User Update Endpoint
CVE-2026-71507 6.5 MEDIUM Dolibarr < 24.0.0 REST API Broken Object-Level Authorization via Bank Account Routes
CVE-2026-71509 6.5 MEDIUM Dolibarr < 24.0.0 Expense Report REST API Improper Authorization via Update Endpoint
CVE-2026-78160 6.3 MEDIUM Dolibarr ERP User Notes note.php authorization
CVE-2026-71503 6.1 MEDIUM Dolibarr < 24.0.0 Reflected XSS via Extra Fields Administration Template
CVE-2026-77923 4.3 MEDIUM Dolibarr 21.0.0 < 24.0.0 Authorization Bypass via clonetasks Mass Action

IV. Related Vulnerabilities

Same product: dolibarr
Same vendor: Dolibarr
Same weakness: CWE-639

V. Comments for CVE-2026-71505

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