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CVE-2021-30533CISA KEV

Google Chromium PopupBlocker Security Bypass Vulnerability

CISA lists this Google Chromium PopupBlocker vulnerability as known exploited. The vendor's advisory has the fixed versions.

CISA KEVVendor advisoryNVD

CISA catalog record

Google Chromium PopupBlocker contains an insufficient policy enforcement vulnerability that allows a remote attacker to bypass navigation restrictions via a crafted iframe. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Product
Chromium PopupBlocker
Added to KEV
27 Jun 2022
Federal remediation due
18 Jul 2022
Known ransomware use
Not reported

What changed

First observed 14 Oct 2026

No field changes in the recorded history.

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ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 14 Oct 15:58 UTC · 254 of 255 readable · 253 fully read · documentation 0/409 current

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