GreenBrowser up to 1.1 Access Control unknown vulnerability

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in GreenBrowser up to 1.1 and classified as critical. Affected by this issue is some unknown processing of the component Access Control. The manipulation with an unknown input leads to a improper authorization in handler for custom url scheme vulnerability. Using CWE to declare the problem leads to CWE-939. The product uses a handler for a custom URL scheme, but it does not properly restrict which actors can invoke the handler using the scheme. Impacted is confidentiality, integrity, and availability. CVE summarizes:

GreenBrowser before version 1.2 has a vulnerability where apps that rely on URL Parsing to verify that a given URL is pointing to a trust server may be susceptible to many different ways to get URL parsing and verification wrong, which allows an attacker to circumvent the access control. This problem has been patched in version 1.2.

The weakness was disclosed 04/08/2020 (GitHub Repository). The advisory is available at This vulnerability is handled as CVE-2020-11000 since 03/30/2020. The attack may be launched remotely. Required for exploitation is a simple authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 1.2 eliminates this vulnerability.

The entries VDB-161347, VDB-161855, VDB-162072 and VDB-162075 are pretty similar.





CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍


VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.7
NVD Vector: 🔍

CNA Base Score: 5.7
CNA Vector (GitHub, Inc.): 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Improper authorization in handler for custom url scheme
CWE: CWE-939 / CWE-285 / CWE-266

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: GreenBrowser 1.2


03/30/2020 🔍
04/08/2020 +9 days 🔍
04/09/2020 +1 days 🔍
05/17/2024 +1499 days 🔍


Advisory: 5e257e0db4f2a08cf05f00756e5961ee873e481b
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-11000 (🔍)
See also: 🔍


Created: 04/09/2020 09:39 AM
Updated: 05/17/2024 03:52 PM
Changes: 04/09/2020 09:39 AM (38), 04/09/2020 09:44 AM (11), 10/09/2020 09:23 AM (1), 05/17/2024 03:46 PM (18), 05/17/2024 03:52 PM (18)
Complete: 🔍
Cache ID: 3:25C:40


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