Description
Observable response discrepancy vulnerability in DernekPlus Website Template allows Account Footprinting.

This issue affects Website Template: through 10092026. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Published: 2026-09-10
Score: 5.3 Medium
EPSS: n/a
KEV: No
Impact: Account Footprinting via User Enumeration
Action: Assess Impact
AI Analysis

Impact

DernekPlus Website Template contains an observable response discrepancy that allows an attacker to determine whether a specific account exists. This vulnerability enables account footprinting, exposing user identities and potentially aiding further attacks. The weakness is reflected by CWE-204, indicating an improper validation that leads to information leakage.

Affected Systems

The affected product is DernekPlus Website Template. All releases through version 10092026 are impacted. No specific subcomponents or configurations are mentioned beyond the template itself.

Risk and Exploitability

The CVSS score of 5.3 indicates medium severity, and the EPSS score is not available. The vulnerability is not listed in the CISA KEV catalog. The likely attack vector is remote access via the public web interface, where an attacker can send crafted requests to probe account existence and observe the response differences. Because the vendor has not released a fix, the risk persists until a new version or patch is applied.

Generated by OpenCVE AI on September 10, 2026 at 13:22 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Normalize or suppress error messages that reveal account existence; ensure responses to lookup requests are identical regardless of user validity.
  • Implement rate limiting or lockout mechanisms for repeated username checks or failed login attempts to reduce enumeration opportunities.
  • Verify that a newer version of DernekPlus Website Template is available and deploy it as soon as the vendor releases an update addressing this issue.
  • If a patch is not yet available, monitor web logs for enumeration attempts and apply IP blocking or CAPTCHA challenges to suspicious traffic.

Generated by OpenCVE AI on September 10, 2026 at 13:22 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 10 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 10 Sep 2026 12:30:00 +0000

Type Values Removed Values Added
Description Observable response discrepancy vulnerability in DernekPlus Website Template allows Account Footprinting. This issue affects Website Template: through 10092026. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Title User Enumeration in DernekPlus' Website Template
Weaknesses CWE-204
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: TR-CERT

Published:

Updated: 2026-09-10T12:42:48.818Z

Reserved: 2026-05-21T08:41:18.219Z

Link: CVE-2026-9161

cve-icon Vulnrichment

Updated: 2026-09-10T12:42:07.438Z

cve-icon NVD

Status : Deferred

Published: 2026-09-10T13:20:33.537

Modified: 2026-09-10T15:13:07.090

Link: CVE-2026-9161

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T13:30:12Z

Weaknesses
  • CWE-204

    Observable Response Discrepancy