FKIE_CVE-2026-2345

Vulnerability from fkie_nvd - Published: 2026-02-11 15:16 - Updated: 2026-02-11 15:27
Severity ?
3.6 (Low) - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Summary
Proctorio Chrome Extension is a browser extension used for online proctoring. The extension contains multiple window.addEventListener('message', ...) handlers that do not properly validate the origin of incoming messages. Specifically, an internal messaging bridge processes messages based solely on the presence of a fromWebsite property without verifying the event.origin attribute.
References
7004884b-51e2-48e8-b4a2-5ca29e80453ehttps://www.hckrt.com/hacktivity/46b61f36-b685-4667-aebf-82a67ad69ad6
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Proctorio Chrome Extension is a browser extension used for online proctoring. The extension contains multiple window.addEventListener(\u0027message\u0027, ...) handlers that do not properly validate the origin of incoming messages. Specifically, an internal messaging bridge processes messages based solely on the presence of a fromWebsite property without verifying the event.origin attribute."
    }
  ],
  "id": "CVE-2026-2345",
  "lastModified": "2026-02-11T15:27:26.370",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 3.6,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 2.5,
        "source": "7004884b-51e2-48e8-b4a2-5ca29e80453e",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-11T15:16:18.160",
  "references": [
    {
      "source": "7004884b-51e2-48e8-b4a2-5ca29e80453e",
      "url": "https://www.hckrt.com/hacktivity/46b61f36-b685-4667-aebf-82a67ad69ad6"
    }
  ],
  "sourceIdentifier": "7004884b-51e2-48e8-b4a2-5ca29e80453e",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        }
      ],
      "source": "7004884b-51e2-48e8-b4a2-5ca29e80453e",
      "type": "Secondary"
    }
  ]
}


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  • 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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.