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CVE-2020-1905 Media ContentProvider URIs used for opening attachments in other apps were generated sequentially prior to WhatsApp…

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 and versions

Product Affected versions Fixed in
WhatsApp for Android 2.20 earliest → 2.20.185 2.20.185
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