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CVE-2026-2345 Detail

Description

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://www.hckrt.com/hacktivity/46b61f36-b685-4667-aebf-82a67ad69ad6 Hackrate

Weakness Enumeration

CWE-ID CWE Name Source
CWE-346 Origin Validation Error Hackrate  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-2345
NVD Published Date:
02/11/2026
NVD Last Modified:
02/11/2026
Source:
Hackrate