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Vulnerability record · CVE-2020-1908 · published 3 November 2020

CVE-2020-1908: Whatsapp improper authorization vulnerability

Whatsapp · Whatsapp

Improper authorization of the Screen Lock feature in WhatsApp and WhatsApp Business for iOS prior to v2.20.100 could have permitted use of Siri to interact with the WhatsApp application even after the phone was locked.

4.6 CVSS 3.1 Medium EPSS 0.29% · top 79.8% CWE-285 · Improper authorizationCWE-552 · CWE-552
4.6CVSS 3.1 base score, v2 2.1
0.29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Improper authorization of the Screen Lock feature in WhatsApp and WhatsApp Business for iOS prior to v2.20.100 could have permitted use of Siri to interact with the WhatsApp application even after the phone was locked.

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.whatsapp.com/security/advisories/2020/ Vendor Advisory
https://www.whatsapp.com/security/advisories/2020/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-1908), CISA KEV, FIRST EPSS (scores of 2026-10-15). This page is refreshed as NVD updates the record.