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    2 vulnerabilities found for Secure Exam Proctor Extension by Proctorio

    CVE-2026-2345 (GCVE-0-2026-2345)

    Vulnerability from cvelistv5 – Published: 2026-02-11 14:49 – Updated: 2026-02-11 21:19
    VLAI
    Title
    Insufficient Origin Validation in Proctorio Chrome Extension postMessage Handlers
    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.
    Severity
    3.6 (Low)
    CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-346 - Origin Validation Error
    Assigner
    References
    Impacted products
    Vendor Product Version
    Proctorio Secure Exam Proctor Extension Affected: 1.5.25220.33
    Unaffected: 1.5.25220.36
    		Create a notification for this product.
    Credits
    Caen Jones (@vcc3v)
    Show details on NVD website
    To clipboard 

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    CVE-2026-2345 (GCVE-0-2026-2345)

    Vulnerability from nvd – Published: 2026-02-11 14:49 – Updated: 2026-02-11 21:19
    VLAI
    Title
    Insufficient Origin Validation in Proctorio Chrome Extension postMessage Handlers
    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.
    Severity
    3.6 (Low)
    CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-346 - Origin Validation Error
    Assigner
    References
    Impacted products
    Vendor Product Version
    Proctorio Secure Exam Proctor Extension Affected: 1.5.25220.33
    Unaffected: 1.5.25220.36
    		Create a notification for this product.
    Credits
    Caen Jones (@vcc3v)
    Show details on NVD website
    To clipboard 

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