CVE-2021-30533: Google Chromium PopupBlocker Security Bypass Vulnerability
CVE-2021-30533 · Severity: critical · CVSS 6.5 · Exploited in the wild · Published 2022-06-27
Google Chromium PopupBlocker contains an insufficient policy enforcement vulnerability that allows a remote attacker to bypass navigation restrictions via a crafted iframe. This flaw enables attackers to circumvent intended security controls in browsers based on Chromium.
Yes. CVE-2021-30533 is known to be exploited in the wild, first recorded on 27 June 2022. Treat it as urgent.
How severe is CVE-2021-30533?
Critical severity, with a CVSS score of 6.5, published 27 June 2022.
Which products and versions are affected?
Google Chrome prior to 91.0.4472.77; Microsoft Edge; Opera Opera; Fedora Project Fedora 33, 34.
Is there a fix for CVE-2021-30533?
A patch was published on 2021-05-25: Stable channel update for desktop released. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2021-30533 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2021-30533?
Check whether you run Google Chromium Popupblocker. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Google Chrome prior to 91.0.4472.77
Microsoft Edge
Opera Opera
Fedora Project Fedora 33, 34
Timeline
2021-05-25: patched: Stable channel update for desktop released.
2022-06-27: disclosed: NVD publication date.
2022-06-27: kev added: Added to CISA Known Exploited Vulnerabilities catalog.