GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-9161 (GCVE-0-2026-9161)

Vulnerability from cvelistv5 – Published: 2026-09-10 12:06 – Updated: 2026-09-10 12:42
VLAI
Title
User Enumeration in DernekPlus' Website Template
Summary
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.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 12:42 UTC
CWE
  • CWE-204 - Observable response discrepancy
References
Impacted products
Vendor Product Version CPE status
DernekPlus Website Template Affected: 0 , ≤ 10092026 (custom)
guessed Create a notification for this product.
Date Public
2026-09-10 12:02
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-9161",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-10T12:42:00.400252Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-10T12:42:48.818Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Website Template",
          "vendor": "DernekPlus",
          "versions": [
            {
              "lessThanOrEqual": "10092026",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2026-09-10T12:02:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Observable response discrepancy vulnerability in DernekPlus Website Template allows Account Footprinting.\u003cp\u003eThis issue affects Website Template: through 10092026.\u0026nbsp;\u003cspan\u003eNOTE: The vendor was contacted early about this disclosure but did not respond in any way.\u003c/span\u003e\u003c/p\u003e"
            }
          ],
          "value": "Observable response discrepancy vulnerability in DernekPlus Website Template allows Account Footprinting.\n\nThis issue affects Website Template: through 10092026.\u00a0NOTE: The vendor was contacted early about this disclosure but did not respond in any way."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-575",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-575 Account Footprinting"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-204",
              "description": "CWE-204 Observable response discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-10T12:06:25.534Z",
        "orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21",
        "shortName": "TR-CERT"
      },
      "references": [
        {
          "tags": [
            "government-resource"
          ],
          "url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1062"
        }
      ],
      "source": {
        "advisory": "TR-26-1062",
        "defect": [
          "TR-26-1062"
        ],
        "discovery": "UNKNOWN"
      },
      "title": "User Enumeration in DernekPlus\u0027 Website Template",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21",
    "assignerShortName": "TR-CERT",
    "cveId": "CVE-2026-9161",
    "datePublished": "2026-09-10T12:06:25.534Z",
    "dateReserved": "2026-05-21T08:41:18.219Z",
    "dateUpdated": "2026-09-10T12:42:48.818Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-9161",
      "date": "2026-09-20",
      "epss": "0.00197",
      "percentile": "0.09796"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "product": "Website Template",
                "vendor": "DernekPlus",
                "versions": [
                  {
                    "lessThanOrEqual": "10092026",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "iletisim@usom.gov.tr"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Observable response discrepancy vulnerability in DernekPlus Website Template allows Account Footprinting.\n\nThis issue affects Website Template: through 10092026.\u00a0NOTE: The vendor was contacted early about this disclosure but did not respond in any way."
          }
        ],
        "id": "CVE-2026-9161",
        "lastModified": "2026-09-10T15:13:07.090",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "iletisim@usom.gov.tr",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-9161",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-10T12:42:00.400252Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-09-10T13:20:33.537",
        "references": [
          {
            "source": "iletisim@usom.gov.tr",
            "url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1062"
          }
        ],
        "sourceIdentifier": "iletisim@usom.gov.tr",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-204"
              }
            ],
            "source": "iletisim@usom.gov.tr",
            "type": "Primary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-9161",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-10T12:42:00.400252Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-10T12:42:07.438Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unknown",
              "product": "Website Template",
              "vendor": "DernekPlus",
              "versions": [
                {
                  "lessThanOrEqual": "10092026",
                  "status": "affected",
                  "version": "0",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "datePublic": "2026-09-10T12:02:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "Observable response discrepancy vulnerability in DernekPlus Website Template allows Account Footprinting.\u003cp\u003eThis issue affects Website Template: through 10092026.\u0026nbsp;\u003cspan\u003eNOTE: The vendor was contacted early about this disclosure but did not respond in any way.\u003c/span\u003e\u003c/p\u003e"
                }
              ],
              "value": "Observable response discrepancy vulnerability in DernekPlus Website Template allows Account Footprinting.\n\nThis issue affects Website Template: through 10092026.\u00a0NOTE: The vendor was contacted early about this disclosure but did not respond in any way."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-575",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-575 Account Footprinting"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-204",
                  "description": "CWE-204 Observable response discrepancy",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-10T12:06:25.534Z",
            "orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21",
            "shortName": "TR-CERT"
          },
          "references": [
            {
              "tags": [
                "government-resource"
              ],
              "url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1062"
            }
          ],
          "source": {
            "advisory": "TR-26-1062",
            "defect": [
              "TR-26-1062"
            ],
            "discovery": "UNKNOWN"
          },
          "title": "User Enumeration in DernekPlus\u0027 Website Template",
          "x_generator": {
            "engine": "Vulnogram 1.0.5"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21",
        "assignerShortName": "TR-CERT",
        "cveId": "CVE-2026-9161",
        "datePublished": "2026-09-10T12:06:25.534Z",
        "dateReserved": "2026-05-21T08:41:18.219Z",
        "dateUpdated": "2026-09-10T12:42:48.818Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…