Vulnerability-Lookup

WID-SEC-W-2026-2397

Vulnerability from csaf_certbund - Published: 2026-07-16 22:00 - Updated: 2026-07-16 22:00

Summary

Microsoft SharePoint und SharePoint Server: Schwachstelle ermöglicht Cross-Site Scripting

Severity

Mittel

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: Microsoft Sharepoint Services ist ein Portalsystem für die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u.a. über Webseiten zur Verfügung gestellt.

Angriff: Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Microsoft SharePoint und Microsoft SharePoint Server ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.

Betroffene Betriebssysteme: - Windows

CVE-2026-62826

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Microsoft SharePoint Subscription Edition <16.0.19725.20434 Microsoft / SharePoint		Subscription Edition <16.0.19725.20434
Microsoft SharePoint Server 2019 <16.0.10417.20175 Microsoft / SharePoint Server 2019		<16.0.10417.20175
Microsoft SharePoint Server 2016 Enterprise <16.0.5561.1001 Microsoft / SharePoint Server 2016		Enterprise <16.0.5561.1001

References

3 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://msrc.microsoft.com/update-guide/vulnerabi…	external

JSON

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": "Microsoft Sharepoint Services ist ein Portalsystem f\u00fcr die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u.a. \u00fcber Webseiten zur Verf\u00fcgung gestellt.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Microsoft SharePoint und Microsoft SharePoint Server ausnutzen, um einen Cross-Site Scripting Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- 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-2026-2397 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2397.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-2397 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2397"
      },
      {
        "category": "external",
        "summary": "Microsoft Security Advisory CVE-2026-62826 vom 2026-07-16",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62826"
      }
    ],
    "source_lang": "en-US",
    "title": "Microsoft SharePoint und SharePoint Server: Schwachstelle erm\u00f6glicht Cross-Site Scripting",
    "tracking": {
      "current_release_date": "2026-07-16T22:00:00.000+00:00",
      "generator": {
        "date": "2026-07-17T10:40:04.435+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-2397",
      "initial_release_date": "2026-07-16T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-07-16T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
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                "category": "product_version_range",
                "name": "Subscription Edition \u003c16.0.19725.20434",
                "product": {
                  "name": "Microsoft SharePoint Subscription Edition \u003c16.0.19725.20434",
                  "product_id": "T056745"
                }
              },
              {
                "category": "product_version",
                "name": "Subscription Edition 16.0.19725.20434",
                "product": {
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                  "product_id": "T056745-fixed",
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                    "cpe": "cpe:/a:microsoft:sharepoint:subscription_edition__16.0.19725.20434"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SharePoint"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "Enterprise \u003c16.0.5561.1001",
                "product": {
                  "name": "Microsoft SharePoint Server 2016 Enterprise \u003c16.0.5561.1001",
                  "product_id": "T056748"
                }
              },
              {
                "category": "product_version",
                "name": "Enterprise 16.0.5561.1001",
                "product": {
                  "name": "Microsoft SharePoint Server 2016 Enterprise 16.0.5561.1001",
                  "product_id": "T056748-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:sharepoint_server_2016:enterprise__16.0.5561.1001"
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            ],
            "category": "product_name",
            "name": "SharePoint Server 2016"
          },
          {
            "branches": [
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                "category": "product_version_range",
                "name": "\u003c16.0.10417.20175",
                "product": {
                  "name": "Microsoft SharePoint Server 2019 \u003c16.0.10417.20175",
                  "product_id": "T056747"
                }
              },
              {
                "category": "product_version",
                "name": "16.0.10417.20175",
                "product": {
                  "name": "Microsoft SharePoint Server 2019 16.0.10417.20175",
                  "product_id": "T056747-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:sharepoint_server_2019:16.0.10417.20175"
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              }
            ],
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            "name": "SharePoint Server 2019"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-62826",
      "product_status": {
        "known_affected": [
          "T056745",
          "T056747",
          "T056748"
        ]
      },
      "release_date": "2026-07-16T22:00:00.000+00:00",
      "title": "CVE-2026-62826"
    }
  ]
}

CVE-2026-62826 (GCVE-0-2026-62826)

Vulnerability from cvelistv5 – Published: 2026-07-16 22:02 – Updated: 2026-09-25 18:25

Title

Microsoft SharePoint Server Spoofing Vulnerability

Summary

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Severity

4.6 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-17 14:07 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

microsoft mitre root Scorecard

References

1 reference

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerabi…	vendor-advisorypatch

Impacted products

3 products

Vendor	Product	Version
Microsoft	Microsoft SharePoint Enterprise Server 2016	Affected: 16.0.0 , < 16.0.5561.1001 (custom)
Microsoft	Microsoft SharePoint Server 2019	Affected: 16.0.0 , < 16.0.10417.20175 (custom)
Microsoft	Microsoft SharePoint Server Subscription Edition	Affected: 16.0.0 , < 16.0.19725.20434 (custom)

Date Public

2026-07-16 14:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-62826",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-17T14:07:23.415484Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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WID-SEC-W-2026-2397

CVE-2026-62826 (GCVE-0-2026-62826)

Tags

Sightings

Nomenclature

Related by attack behaviour