CVE-2026-82809: vidIQ Vision for YouTube Extension postMessage window.addEventListener information disclosure
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."
Affected Software
Event History
Frequently Asked Questions
What must an attacker do to exploit this issue?
The attacker remotely manipulates the vidiqEvent argument handled by the extension's postMessage event listener. Exploitation requires user interaction, but no attacker privileges are required.
What information security impact is reported?
The reported impact is disclosure of information with low confidentiality impact. No integrity or availability impact is identified in the supplied severity vector.
Is public exploitation material available?
Yes. An exploit has been publicly released and may be used in attacks.
What version is identified as affected?
The affected version identified in the report is vidIQ Vision for YouTube Extension 3.199.0 on Chrome.