CVE-2021-30533 KEV
6.5
MEDIUM · CVSS 3.1 · EPSS 16.6% (pctl 97)
Patch first
On CISA KEV — known exploited in the wild, due 2022-07-18.
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.
Scoring
| CVSS | 6.5 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
| EPSS | 16.61% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-863 |
| On CISA KEV | yes — remediate by 2022-07-18 |
| Public exploit | none known |
| Published | 2021-06-07 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Google Chromium PopupBlocker Security Bypass Vulnerability |
|---|---|
| Added | 2022-06-27 |
| Due | 2022-07-18 |
| Vendor / product | Google / Chromium PopupBlocker |
| Ransomware use | none reported |
Affected (2)
| Vendor | Product |
|---|---|
| fedoraproject | fedora |
| chrome |
References
- 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/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
- https://security.gentoo.org/glsa/202107-06
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30533
→ the Explorer · watch your stack · NVD