Vulnerabilities CVE-2026-31845

CVE-2026-31845

Critical

Open

TLP:CLEAR

Rukovoditel CRM Reflected XSS via zd_echo Parameter in Zadarma Telephony API Endpoint

NVD CVE.org

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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.

Details

CVSS Score: 9.3
EPSS Score ⓘ: 0.43%

35.5th percentile
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H
Confidence: 90%
Published: Apr 11, 2026
Last Modified: Aug 10, 2026

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