WID-SEC-W-2025-2463

Vulnerability from csaf_certbund - Published: 2025-11-02 23:00 - Updated: 2025-11-27 23:00
Summary
Mattermost Server: Mehrere Schwachstellen

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung
Mattermost ist ein webbasierter Instant-Messaging-Dienst.
Angriff
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mattermost Server ausnutzen, um Informationen offenzulegen und einen nicht näher spezifizierten Angriff durchzuführen.
Betroffene Betriebssysteme
- Sonstiges - UNIX - Windows
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Mattermost ist ein webbasierter Instant-Messaging-Dienst.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mattermost Server ausnutzen, um Informationen offenzulegen und einen nicht n\u00e4her spezifizierten Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\n- UNIX\n- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2025-2463 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-2463.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2025-2463 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-2463"
      },
      {
        "category": "external",
        "summary": "Mattermost Security Updates vom 2025-11-02",
        "url": "https://mattermost.com/security-updates/#server"
      }
    ],
    "source_lang": "en-US",
    "title": "Mattermost Server: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2025-11-27T23:00:00.000+00:00",
      "generator": {
        "date": "2025-11-28T12:42:12.718+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2025-2463",
      "initial_release_date": "2025-11-02T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2025-11-02T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2025-11-05T23:00:00.000+00:00",
          "number": "2",
          "summary": "weitere Mattermost Schwachstelle aufgenommen"
        },
        {
          "date": "2025-11-27T23:00:00.000+00:00",
          "number": "3",
          "summary": "CVE und Informationen von Mattermost erg\u00e4nzt"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "Server \u003c11.1.0",
                "product": {
                  "name": "Mattermost Mattermost Server \u003c11.1.0",
                  "product_id": "T048257"
                }
              },
              {
                "category": "product_version",
                "name": "Server 11.1.0",
                "product": {
                  "name": "Mattermost Mattermost Server 11.1.0",
                  "product_id": "T048257-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mattermost:mattermost_server:server__11.1.0"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Server \u003c11.0.3",
                "product": {
                  "name": "Mattermost Mattermost Server \u003c11.0.3",
                  "product_id": "T048258"
                }
              },
              {
                "category": "product_version",
                "name": "Server 11.0.3",
                "product": {
                  "name": "Mattermost Mattermost Server 11.0.3",
                  "product_id": "T048258-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mattermost:mattermost_server:server__11.0.3"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Server \u003c10.12.2",
                "product": {
                  "name": "Mattermost Mattermost Server \u003c10.12.2",
                  "product_id": "T048259"
                }
              },
              {
                "category": "product_version",
                "name": "Server 10.12.2",
                "product": {
                  "name": "Mattermost Mattermost Server 10.12.2",
                  "product_id": "T048259-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mattermost:mattermost_server:server__10.12.2"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Server \u003c10.11.5",
                "product": {
                  "name": "Mattermost Mattermost Server \u003c10.11.5",
                  "product_id": "T048261"
                }
              },
              {
                "category": "product_version",
                "name": "Server 10.11.5",
                "product": {
                  "name": "Mattermost Mattermost Server 10.11.5",
                  "product_id": "T048261-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mattermost:mattermost_server:server__10.11.5"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Server \u003c10.5.13",
                "product": {
                  "name": "Mattermost Mattermost Server \u003c10.5.13",
                  "product_id": "T048262"
                }
              },
              {
                "category": "product_version",
                "name": "Server 10.5.13",
                "product": {
                  "name": "Mattermost Mattermost Server 10.5.13",
                  "product_id": "T048262-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mattermost:mattermost_server:server__10.5.13"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Mattermost"
          }
        ],
        "category": "vendor",
        "name": "Mattermost"
      }
    ]
  },
  "vulnerabilities": [
    {
      "product_status": {
        "known_affected": [
          "T048262",
          "T048261",
          "T048259",
          "T048258",
          "T048257"
        ]
      },
      "release_date": "2025-11-02T23:00:00.000+00:00"
    },
    {
      "cve": "CVE-2025-12559",
      "product_status": {
        "known_affected": [
          "T048262",
          "T048261",
          "T048259",
          "T048258",
          "T048257"
        ]
      },
      "release_date": "2025-11-05T23:00:00.000+00:00",
      "title": "CVE-2025-12559"
    }
  ]
}


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Sightings

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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.



Detection rules are retrieved from Rulezet.