Vulnerability-Lookup

CVE-2026-78414 (GCVE-0-2026-78414)

Vulnerability from cvelistv5 – Published: 2026-08-24 14:51 – Updated: 2026-08-24 20:21

Title

Cross-site scripting in Nx Witness VMS Web Administration allows session token exfiltration via a rogue peer site name

Summary

Cross-site scripting in the Web Administration interface of Network Optix Nx Witness VMS before version 6.1.3 on Linux, Windows and MacOS allows an adjacent-network attacker to execute arbitrary JavaScript in the browser of an authenticated administrator and steal the administrator's session token, resulting in Administrator Account Takeover. An attacker who controls an Nx server on the same network segment can set that server's site name to a script payload, which executes when an administrator opens the "Merge with Another Site" dialog and the site selection list is displayed.Solution: Update to Nx Witness VMS version 6.1.3 or later.

Severity

8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-24 20:21 UTC

CWE

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

Assigner

NX mitre root

References

1 reference

URL	Tags
https://support.networkoptix.com/hc/en-us/article…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Network Optix	Nx Witness VMS	Affected: 0 , < 6.1.3 (semver)	guessed

Date Public

2026-08-24 00:00

Credits

Matan Sandori and 2Bsecure

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
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                "id": "CVE-2026-78414",
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                    "Automatable": "no"
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                    "Technical Impact": "total"
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                "role": "CISA Coordinator",
                "timestamp": "2026-08-24T20:21:19.227382Z",
                "version": "2.0.3"
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      "source": {
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    "dateReserved": "2026-08-24T14:46:55.290Z",
    "dateUpdated": "2026-08-24T20:21:30.345Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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    "vulnrichment": {
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FKIE_CVE-2026-78414

Vulnerability from fkie_nvd - Published: 2026-08-24 15:16 - Updated: 2026-08-24 21:17

Severity

8.0 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	96d4e157-0bf0-48b3-8efd-382c68caf4e0	https://support.networkoptix.com/hc/en-us/articles/42950508518679-Security-Advisory-Cross-Site-Scripting-XSS-in-Merge-with-Another-Site-Dropdown

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "platforms": [
            "Linux",
            "Windows",
            "MacOS"
          ],
          "product": "Nx Witness VMS",
          "vendor": "Network Optix",
          "versions": [
            {
              "lessThan": "6.1.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "96d4e157-0bf0-48b3-8efd-382c68caf4e0"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cross-site scripting in the Web Administration interface of Network Optix Nx Witness VMS before version 6.1.3 on Linux, Windows and MacOS allows an adjacent-network attacker to execute arbitrary JavaScript in the browser of an authenticated administrator and steal the administrator\u0027s session token, resulting in Administrator Account Takeover. An attacker who controls an Nx server on the same network segment can set that server\u0027s site name to a script payload, which executes when an administrator opens the \"Merge with Another Site\" dialog and the site selection list is displayed.Solution:\n\nUpdate to Nx Witness VMS version 6.1.3 or later."
    }
  ],
  "id": "CVE-2026-78414",
  "lastModified": "2026-08-24T21:17:48.610",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 5.9,
        "source": "96d4e157-0bf0-48b3-8efd-382c68caf4e0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
            {
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            },
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              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-24T20:21:19.227382Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-24T15:16:48.873",
  "references": [
    {
      "source": "96d4e157-0bf0-48b3-8efd-382c68caf4e0",
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}

GHSA-237W-25VX-R57C

Vulnerability from github – Published: 2026-08-24 15:31 – Updated: 2026-08-24 15:31

Details

Update to Nx Witness VMS version 6.1.3 or later.

Severity

8.0 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-78414"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-24T15:16:48Z",
    "severity": "HIGH"
  },
  "details": "Cross-site scripting in the Web Administration interface of Network Optix Nx Witness VMS before version 6.1.3 on Linux, Windows and MacOS allows an adjacent-network attacker to execute arbitrary JavaScript in the browser of an authenticated administrator and steal the administrator\u0027s session token, resulting in Administrator Account Takeover. An attacker who controls an Nx server on the same network segment can set that server\u0027s site name to a script payload, which executes when an administrator opens the \"Merge with Another Site\" dialog and the site selection list is displayed.Solution:\n\nUpdate to Nx Witness VMS version 6.1.3 or later.",
  "id": "GHSA-237w-25vx-r57c",
  "modified": "2026-08-24T15:31:55Z",
  "published": "2026-08-24T15:31:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78414"
    },
    {
      "type": "WEB",
      "url": "https://support.networkoptix.com/hc/en-us/articles/42950508518679-Security-Advisory-Cross-Site-Scripting-XSS-in-Merge-with-Another-Site-Dropdown"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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

CVE-2026-78414 (GCVE-0-2026-78414)

FKIE_CVE-2026-78414

GHSA-237W-25VX-R57C

Tags

Sightings

Nomenclature