CVE-2026-82809 MEDIUM

CVE-2026-82809: vidIQ Vision for YouTube Extension postMessage window.addEventListener information disclosure

Vendor Vidiq
Product Vision for YouTube Extension
Weakness CWE-200 · Info exposure
Published August 31, 2026
Last update August 31, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A security flaw has been discovered in vidIQ Vision for YouTube Extension 3.199.0 on Chrome. The affected element is the function window.addEventListener of the component postMessage Handler. Performing a manipulation of the argument vidiqEvent results in information disclosure. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor explains: "At this time, vidIQ does not accept security vulnerability submissions, and we do not have a bug bounty program in place."

Key dates

02Disclosure timeline

August 31, 2026 CVE published
August 31, 2026 Record updated

Related vulnerabilities

04Related CVE