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.
Metrics
CVSS 3.1 9.3/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Rukovoditel | Rukovoditel CRM | 3.6.4 |
References
Timeline
- Published
- Apr 11, 2026
- Last modified
- Oct 26, 2026
- NVD status
- Deferred