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CVE-2020-6516

MediumPublished

Policy bypass in CORS in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to leak cross-origin data via a crafted HTML page.

Published: Jul 22, 2020
Updated: Aug 4, 2024
Assigning CNA: Chrome
Evidence observed: Aug 8, 2026

Primary CVSS

4.3/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

EPSS probability estimate

4.8%

Low · next 30 days

Percentile: 91.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Policy bypass in CORS in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to leak cross-origin data via a crafted HTML page.

Sources

whatsapp-mitd-mitmPoC
PoC and tools for exploiting CVE-2020-6516 (Chrome) and CVE-2021-24027 (WhatsApp)

Responsible use

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