Vulnerability-Lookup

WID-SEC-W-2026-0961

Vulnerability from csaf_certbund - Published: 2026-04-01 22:00 - Updated: 2026-09-06 22:00

Summary

Netgate pfSense Plus und CE: Mehrere Schwachstellen

Severity

Hoch

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: pfSense ist eine Software-Edge-Firewall mit Router- und VPN-Funktionalität.

Angriff: Ein Angreifer kann mehrere Schwachstellen in Netgate pfSense Plus und CE ausnutzen, um beliebigen Programmcode auszuführen oder Cross-Site-Scripting-Angriffe durchzuführen.

Betroffene Betriebssysteme: - Sonstiges

Vulnerability 1

Affected products

Known affected 2 products

Product	Identifier	Version	Remediation
Netgate pfSense Plus <26.03 Netgate / pfSense		Plus <26.03
Netgate pfSense Plus CE <2.8.1 Netgate / pfSense		Plus CE <2.8.1

Vulnerability 2

Affected products

Known affected 2 products

Product	Identifier	Version	Remediation
Netgate pfSense Plus <26.03 Netgate / pfSense		Plus <26.03
Netgate pfSense Plus CE <2.8.1 Netgate / pfSense		Plus CE <2.8.1

Vulnerability 3

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Netgate pfSense Plus <26.03 Netgate / pfSense		Plus <26.03
Netgate pfSense Plus CE <2.8.1 Netgate / pfSense		Plus CE <2.8.1
Netgate pfSense Plus <26.07 Netgate / pfSense		Plus <26.07

CVE-2026-38961

Affected products

Known affected 3 products

Product	Identifier	Version	Remediation
Netgate pfSense Plus <26.03 Netgate / pfSense		Plus <26.03
Netgate pfSense Plus CE <2.8.1 Netgate / pfSense		Plus CE <2.8.1
Netgate pfSense Plus <26.07 Netgate / pfSense		Plus <26.07

References

6 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://docs.netgate.com/downloads/pfSense-SA-26_…	external
https://docs.netgate.com/downloads/pfSense-SA-26_…	external
https://docs.netgate.com/downloads/pfSense-SA-26_…	external
https://docs.netgate.com/downloads/pfSense-SA-26_…	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "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": "pfSense ist eine Software-Edge-Firewall mit Router- und VPN-Funktionalit\u00e4t.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Netgate pfSense Plus und CE ausnutzen, um beliebigen Programmcode auszuf\u00fchren oder Cross-Site-Scripting-Angriffe durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges",
        "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-2026-0961 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0961.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0961 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0961"
      },
      {
        "category": "external",
        "summary": "Netgate Security Advisory vom 2026-04-01",
        "url": "https://docs.netgate.com/downloads/pfSense-SA-26_01.webgui.asc"
      },
      {
        "category": "external",
        "summary": "Netgate Security Advisory vom 2026-04-01",
        "url": "https://docs.netgate.com/downloads/pfSense-SA-26_02.webgui.asc"
      },
      {
        "category": "external",
        "summary": "Netgate Security Advisory vom 2026-04-01",
        "url": "https://docs.netgate.com/downloads/pfSense-SA-26_03.webgui.asc"
      },
      {
        "category": "external",
        "summary": "Netgate Security Advisory vom 2026-04-01",
        "url": "https://docs.netgate.com/downloads/pfSense-SA-26_04.webgui.asc"
      }
    ],
    "source_lang": "en-US",
    "title": "Netgate pfSense Plus und CE: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-09-06T22:00:00.000+00:00",
      "generator": {
        "date": "2026-09-07T05:19:24.022+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-0961",
      "initial_release_date": "2026-04-01T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-04-01T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-09-06T22:00:00.000+00:00",
          "number": "2",
          "summary": "CVE erg\u00e4nzt"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "Plus \u003c26.03",
                "product": {
                  "name": "Netgate pfSense Plus \u003c26.03",
                  "product_id": "T052385"
                }
              },
              {
                "category": "product_version",
                "name": "Plus 26.03",
                "product": {
                  "name": "Netgate pfSense Plus 26.03",
                  "product_id": "T052385-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:netgate:pfsense:plus__26.03"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Plus CE \u003c2.8.1",
                "product": {
                  "name": "Netgate pfSense Plus CE \u003c2.8.1",
                  "product_id": "T052386"
                }
              },
              {
                "category": "product_version",
                "name": "Plus CE 2.8.1",
                "product": {
                  "name": "Netgate pfSense Plus CE 2.8.1",
                  "product_id": "T052386-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:netgate:pfsense:plus_ce__2.8.1"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "Plus \u003c26.07",
                "product": {
                  "name": "Netgate pfSense Plus \u003c26.07",
                  "product_id": "T052387"
                }
              },
              {
                "category": "product_version",
                "name": "Plus 26.07",
                "product": {
                  "name": "Netgate pfSense Plus 26.07",
                  "product_id": "T052387-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:netgate:pfsense:plus__26.07"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "pfSense"
          }
        ],
        "category": "vendor",
        "name": "Netgate"
      }
    ]
  },
  "vulnerabilities": [
    {
      "product_status": {
        "known_affected": [
          "T052385",
          "T052386"
        ]
      },
      "release_date": "2026-04-01T22:00:00.000+00:00"
    },
    {
      "product_status": {
        "known_affected": [
          "T052385",
          "T052386"
        ]
      },
      "release_date": "2026-04-01T22:00:00.000+00:00"
    },
    {
      "product_status": {
        "known_affected": [
          "T052385",
          "T052386",
          "T052387"
        ]
      },
      "release_date": "2026-04-01T22:00:00.000+00:00"
    },
    {
      "cve": "CVE-2026-38961",
      "product_status": {
        "known_affected": [
          "T052385",
          "T052386",
          "T052387"
        ]
      },
      "release_date": "2026-04-01T22:00:00.000+00:00",
      "title": "CVE-2026-38961"
    }
  ]
}

CVE-2026-38961 (GCVE-0-2026-38961)

Vulnerability from cvelistv5 – Published: 2026-09-04 00:00 – Updated: 2026-09-09 19:39

Summary

Cross-Site Scripting (XSS) vulnerability in the RSS Widget of Netgate pfSense Plus (versions 26.03, 25.11.1) and pfSense CE (version 2.8.1) allows remote authenticated attackers to inject arbitrary JavaScript via malicious content in an RSS feed title. The injected script executes in the browser of any authenticated user who views the dashboard, due to insufficient sanitization of feed title data before rendering in the widget.

Severity

5.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-09 19:38 UTC

CWE

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

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/pfsense/pfsense/commit/9363ac5…
https://docs.netgate.com/downloads/pfSense-SA-26_…

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.4,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "LOW",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-38961",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-09T19:38:52.627708Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-79",
                "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-09T19:39:13.160Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Cross-Site Scripting (XSS) vulnerability in the RSS Widget of Netgate pfSense Plus (versions 26.03, 25.11.1) and pfSense CE (version 2.8.1) allows remote authenticated attackers to inject arbitrary JavaScript via malicious content in an RSS feed title. The injected script executes in the browser of any authenticated user who views the dashboard, due to insufficient sanitization of feed title data before rendering in the widget."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T16:37:37.314Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/pfsense/pfsense/commit/9363ac5b8651a1c7a333180425ce7719070f95f9"
        },
        {
          "url": "https://docs.netgate.com/downloads/pfSense-SA-26_04.webgui.asc"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-38961",
    "datePublished": "2026-09-04T00:00:00.000Z",
    "dateReserved": "2026-04-06T00:00:00.000Z",
    "dateUpdated": "2026-09-09T19:39:13.160Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

WID-SEC-W-2026-0961

CVE-2026-38961 (GCVE-0-2026-38961)

Tags

Sightings

Nomenclature