CVE-2026-31845
Critical
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.
SeverityCritical
CVSS9.3
Exploit probability—
ProductRukovoditel CRM
PublishedApr 11, 2026
First seenApr 11, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Rukovoditel Rukovoditel CRM | 3.6.4 | — |
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