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CVE-2026-77923— Dolibarr 21.0.0 < 24.0.0 Authorization Bypass via clonetasks Mass Action

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是Dolibarr基金会开源的一款企业资源计划系统。 Dolibarr 21.0.0版本至24.0.0之前版本存在授权问题漏洞，该漏洞源于htdocs/core/actions_massactions.inc.php文件中clonetasks批量操作处理器的私密项目成员检查存在反向布尔条件，导致具有项目创建权限的已认证用户可利用有缺陷的!in_array()检查将任务克隆到未授权的私密项目，造成授权绕过。

CVSS 4.3 · Medium EPSS 0.36% · P28

Affected Version Matrix 1

VendorProduct Version RangeStatus
Dolibarr dolibarr 21.0.0< 24.0.0 affected
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I. Basic Information for CVE-2026-77923

Vulnerability Information
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Vulnerability Title
Dolibarr 21.0.0 < 24.0.0 Authorization Bypass via clonetasks Mass Action
Source: CVE Program / CVE List V5
Vulnerability Description
Dolibarr 21.0.0 before 24.0.0 contains an authorization bypass vulnerability caused by an inverted boolean condition in the private-project membership check within the clonetasks mass action handler in htdocs/core/actions_massactions.inc.php. Authenticated users with project creation permission but without access to a target private project can exploit the flawed !in_array() check to clone tasks into unauthorized private projects.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Dolibarr 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dolibarr是Dolibarr基金会开源的一款企业资源计划系统。 Dolibarr 21.0.0版本至24.0.0之前版本存在授权问题漏洞，该漏洞源于htdocs/core/actions_massactions.inc.php文件中clonetasks批量操作处理器的私密项目成员检查存在反向布尔条件，导致具有项目创建权限的已认证用户可利用有缺陷的!in_array()检查将任务克隆到未授权的私密项目，造成授权绕过。
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
Dolibarr dolibarr 21.0.0 ~ 24.0.0 -

II. Public POCs for CVE-2026-77923

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III. Intelligence Information for CVE-2026-77923

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Patches & Fixes for CVE-2026-77923 (1)

Vendor Advisories for CVE-2026-77923 (1)

Vendor Pages for CVE-2026-77923 (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-2026-71505 7.1 HIGH Dolibarr < 24.0.0 REST API Broken Object-Level Authorization via Third-Party Write Route
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

IV. Related Vulnerabilities

Same product: dolibarr
Same vendor: Dolibarr
Same weakness: CWE-863

V. Comments for CVE-2026-77923

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