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Vulnerability record · CVE-2020-1890 · published 3 September 2020

CVE-2020-1890: Whatsapp improper input validation vulnerability

Whatsapp · Whatsapp

A URL validation issue in WhatsApp for Android prior to v2.20.11 and WhatsApp Business for Android prior to v2.20.2 could have caused the recipient of a sticker message containing deliberately malformed data to load an image from a sender-controlled URL without user interaction.

7.5 CVSS 3.1 High EPSS 1.2% · top 32.7% CWE-20 · Improper input validation
7.5CVSS 3.1 base score, v2 5.0
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A URL validation issue in WhatsApp for Android prior to v2.20.11 and WhatsApp Business for Android prior to v2.20.2 could have caused the recipient of a sticker message containing deliberately malformed data to load an image from a sender-controlled URL without user interaction.

CVSS:3.1/AV:N/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-2020-1890), CISA KEV, FIRST EPSS (scores of 2026-10-17). This page is refreshed as NVD updates the record.