Summary
| Parameter | Value |
|---|---|
| CVE ID | CVE-2026-31845 |
| Alert Source | GitHub Advisory - Critical Vulnerability |
| CVE Publication Year | 2026 |
| Date Published | 2026-04-11 |
| Vendor | Rukovoditel |
| Product | CRM |
| CVSS Score | 9.3 (critical) |
| EPSS Score | 0.0% (percentile: 4%) |
| CISA KEV | No |
| Ransomware | Not confirmed |
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.
The vulnerable code is:
if (isset($_GET[‘zd_echo’])) exit($_GET[‘zd_echo’]);
An unauthenticated attacker can exploit this issue by crafting a ma…
Required Actions
Apply vendor patches or mitigations as soon as available.
Who Is Affected?
This vulnerability affects CRM by Rukovoditel. Check if your organization uses this software and requires updates.
Sources
Need help securing your systems? nFlo team offers vulnerability management and 24/7 SOC services. Contact us.
How can nFlo help?
If your organization uses products affected by this vulnerability, contact us. We can help with:
- Verifying whether your systems are at risk
- Implementing patches and risk mitigation
- Monitoring for exploitation attempts in your environment
Useful resources:
