CVE-2020-1905

Severity: low (CVSS 3.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-06 · updated 2026-06-17
Weakness: CWE-340

Description

Media ContentProvider URIs used for opening attachments in other apps were generated sequentially prior to WhatsApp for Android v2.20.185, which could have allowed a malicious third party app chosen to open the file to guess the URIs for previously opened attachments until the opener app is terminated.

Affected products

Facebook WhatsApp for Android: before 2.20.185 — fixed in 2.20.185

How to fix

Upgrade to a fixed version: Facebook WhatsApp for Android 2.20.185. Check the vendor advisory for mitigations.

References

https://www.whatsapp.com/security/advisories/2020/
https://www.whatsapp.com/security/advisories/2020/

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