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CVE-2021-30533

Known Exploited (CISA KEV)MEDIUM
6.5
CVSS Severity Score
EPSS Score43.0210%
EPSS Percentile96.77th
PublishedJun 7, 2021
Last ModifiedOct 24, 2025

Vulnerability Description

Insufficient policy enforcement in PopupBlocker in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass navigation restrictions via a crafted iframe.

Affected Platforms (CPE)

📦
Google

Chrome

< 91.0.4472.77
💻
Fedoraproject

Fedora

= 33
💻
Fedoraproject

Fedora

= 34

References & Advisories

🔗 https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html
🔗 https://crbug.com/1145553
🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
🔗 https://security.gentoo.org/glsa/202107-06
🔗 https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html
🔗 https://crbug.com/1145553
🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/

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