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CVE-2026-71503— Dolibarr < 24.0.0 Reflected XSS via Extra Fields Administration Template

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 之前的版本存在一个反射型跨站脚本漏洞，该漏洞位于“附加字段管理”模板中。具体而言，类型请求参数（type request parameter）未被进行 JavaScript 上下文编码，就直接回显到了内联脚本块中，同时服务器也未发送 Content-Security-Policy 头。未授权的攻击者可以通过诱使已认证的 administrator 访问精心构造的 URL，在该会话中执行任意 JavaScript 代码，并创建持久的管理员账户。

CVSS 6.1 · Medium EPSS 0.21% · P11

Affected Version Matrix 1

VendorProduct Version RangeStatus
Dolibarr dolibarr < 24.0.0 affected
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I. Basic Information for CVE-2026-71503

Vulnerability Information
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Vulnerability Title
Dolibarr < 24.0.0 Reflected XSS via Extra Fields Administration Template
Source: CVE Program / CVE List V5
Vulnerability Description
Dolibarr before 24.0.0 contains a reflected cross-site scripting vulnerability in the extra fields administration template where the type request parameter is echoed without JavaScript-context encoding into an inline script block and no Content-Security-Policy header is emitted. An unauthenticated attacker can cause an authenticated administrator to open a crafted URL to execute arbitrary JavaScript in that session and create a persistent administrator account.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
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-2026-71503

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III. Intelligence Information for CVE-2026-71503

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Patches & Fixes for CVE-2026-71503 (1)

Vendor Advisories for CVE-2026-71503 (1)

Security Blog Posts for CVE-2026-71503 (1)

Vendor Pages for CVE-2026-71503 (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-2026-77923 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-79

V. Comments for CVE-2026-71503

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