Facebook WhatsApp Desktop prior 0.3.4932 Electron sandbox

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability was found in Facebook WhatsApp Desktop (Social Network Software) and classified as critical. This issue affects some unknown functionality of the component Electron. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-265. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A security feature bypass issue in WhatsApp Desktop versions prior to v0.3.4932 could have allowed for sandbox escape in Electron and escalation of privilege if combined with a remote code execution vulnerability inside the sandboxed renderer process.

The weakness was presented 09/03/2020 (Website). The advisory is shared at whatsapp.com. The identification of this vulnerability is CVE-2020-1889 since 12/02/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/04/2020). MITRE ATT&CK project uses the attack technique T1611 for this issue.

Upgrading to version 0.3.4932 eliminates this vulnerability.

See 160666 for similar entry.





CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 8.6
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 10.0
NVD Vector: 🔍



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

NVD Base Score: 🔍


Class: Privilege escalation
CWE: CWE-265 / CWE-264
ATT&CK: T1611

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: WhatsApp Desktop 0.3.4932


12/02/2019 🔍
09/03/2020 +276 days 🔍
09/04/2020 +1 days 🔍
11/12/2020 +69 days 🔍


Advisory: whatsapp.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-1889 (🔍)
See also: 🔍


Created: 09/04/2020 06:47 AM
Updated: 11/12/2020 04:01 PM
Changes: (1) advisory_confirm_url
Complete: 🔍


No comments yet. Languages: en.

Please log in to comment.

Want to stay up to date on a daily basis?

Enable the mail alert feature now!