Information disclosure in Vidiq Vision For Youtube Extension
CVE-2026-82809
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."
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (37.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- Vidiq Vision For Youtube Extension — versions 3.199.0
Weakness classification (CWE)
References
- vuldb.com/vuln/397228 (technical-description, vdb-entry)
- vuldb.com/vuln/397228/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-82809 (third-party-advisory)
- vuldb.com/submit/875245 (third-party-advisory)
- github.com/xryj920/chrome_extensions/blob/main/vidIQ Inc. vidIQ Vision for YouT… (exploit, media-coverage)
Frequently asked questions
- What is CVE-2026-82809?
- CVE-2026-82809 is a medium-severity vulnerability in Vidiq Vision For Youtube Extension, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-08-31.
- How severe is CVE-2026-82809?
- Medium severity. CVSS v3 base score is 4.3 out of 10.