Vulnerability Details : CVE-2021-21133

Insufficient policy enforcement in Downloads in Google Chrome prior to 88.0.4324.96 allowed an attacker who convinced a user to download files to bypass navigation restrictions via a crafted HTML page.

Published 2021-02-09 14:15:16

Updated 2022-07-12 17:42:04

Source Chrome

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-21133

Probability of exploitation activity in the next 30 days: 0.14%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 50 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-21133

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:P/I:N/A:N	8.6	2.9	nvd@nist.gov
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N	2.8	3.6	nvd@nist.gov
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: None Availability: None

References for CVE-2021-21133

https://crbug.com/1157743

Inloggen - Google Accounts
Permissions Required;Third Party Advisory
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21133

CVE-2021-21133 - Security Update Guide - Microsoft - Chromium CVE-2021-21133: Insufficient policy enforcement in Downloads
Third Party Advisory
https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html

Chrome Releases: Stable Channel Update for Desktop
Release Notes;Vendor Advisory

CVEs referencing this url

Products affected by CVE-2021-21133

Microsoft » Edge Chromium
Versions before (<) 88.0.705.50
cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*
Matching versions
Google » Chrome
Versions before (<) 88.0.4324.96
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Matching versions