Vulnerability · Published Apr 11, 2026 · Assigned by TuranSec
CVE-2026-31845Rukovoditel CRM Reflected XSS via zd_echo Parameter in Zadarma Telephony API Endpoint
Critical 9.3
In plain English
A critical-severity cross-site scripting in Rukovoditel CRM from Rukovoditel. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Severity (CVSS 3.1)9.3Critical
Exploit odds (30 days)0.4%top 62.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Rukovoditel | Rukovoditel CRM | 3.6.4 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
References
- https://forum.rukovoditel.net/viewtopic.php?p=22499#p22499 third-party-advisory