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CVE-2026-31845— Rukovoditel CRM Reflected XSS via zd_echo Parameter in Zadarma Telephony API Endpoint

Quick assessment

Affected
Rukovoditel Rukovoditel CRM
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.

Rukovoditel CRM是Rukovoditel公司的一个基于Web的客户关系与业务流程管理系统。 Rukovoditel CRM 3.6.4及之前版本存在安全漏洞，该漏洞源于Zadarma电话API端点中zd_echo参数未经验证直接反射到HTTP响应，可能导致反射型跨站脚本攻击。

CVSS 9.3 · Critical EPSS 0.48% · P39

Affected Version Matrix 2

VendorProduct Version RangeStatus
Rukovoditel Rukovoditel CRM 3.6.4 affected
3.7 unaffected
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I. Basic Information for CVE-2026-31845

Vulnerability Information
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Vulnerability Title
Rukovoditel CRM Reflected XSS via zd_echo Parameter in Zadarma Telephony API Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
A reflected cross-site scripting (XSS) vulnerability exists in Rukovoditel CRM version 3.6.4 and earlier in the Zadarma telephony API endpoint (/api/tel/zadarma.php). The application directly reflects user-supplied input from the 'zd_echo' GET parameter into the HTTP response without proper sanitization, output encoding, or content-type restrictions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/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
Vulnerability Title
Rukovoditel CRM 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rukovoditel CRM是Rukovoditel公司的一个基于Web的客户关系与业务流程管理系统。 Rukovoditel CRM 3.6.4及之前版本存在安全漏洞，该漏洞源于Zadarma电话API端点中zd_echo参数未经验证直接反射到HTTP响应，可能导致反射型跨站脚本攻击。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Rukovoditel Rukovoditel CRM 3.6.4 -

II. Public POCs for CVE-2026-31845

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III. Intelligence Information for CVE-2026-31845

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Other References for CVE-2026-31845 (1)

IV. Related Vulnerabilities

Same vendor: Rukovoditel
Same weakness: CWE-79

V. Comments for CVE-2026-31845

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