Auth bypass in Google Chrome
CVE-2021-30534
Insufficient policy enforcement in iFrameSandbox in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.012 (67.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Google Chrome — versions unspecified
- Fedoraproject Fedora — versions 33, 34
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html (Release Notes, Vendor Advisory)
- crbug.com/1151507 (Permissions Required, Exploit, Patch, Issue Tracking, Vendor Advisory)
- security.gentoo.org/glsa/202107-06 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-30534?
- CVE-2021-30534 is a medium-severity vulnerability in Google Chrome, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2021-06-07.
- How severe is CVE-2021-30534?
- Medium severity. CVSS v3 base score is 6.5 out of 10.