Description
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."
References5
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N - CVSS 4.0
-
2.1
LOW
Score source: CNA
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 39 · as of 8 November 2026
- CWE
- CWE-200CWE-284
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.