CVE-2021-24035 Path traversal in WhatsApp Business for Android

What is CVE-2021-24035?

CVE-2021-24035 is a critical path traversal vulnerability in Facebook WhatsApp Business for Android, published on 11 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A lack of filename validation when unzipping archives prior to WhatsApp for Android v2.21.8.13 and WhatsApp Business for Android v2.21.8.13 could have allowed path traversal attacks that overwrite WhatsApp files.

Weakness: CWE-22, CWE-23

Which versions are affected by CVE-2021-24035?

It affects 2 products.

Products include Whatsapp Whatsapp, Whatsapp Whatsapp Business.

How do I fix CVE-2021-24035?

No fix has been published for CVE-2021-24035 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2021-24035 being exploited?

There is no known exploitation of CVE-2021-24035 in the wild and no public exploit code.

Other vulnerabilities in Facebook WhatsApp Business for Android

• CVE-2019-3568 WhatsApp VOIP Stack Buffer Overflow Exploited Critical 9.8
• CVE-2019-18426 WhatsApp Cross-Site Scripting Exploited High 8.2
• CVE-2025-55177 Meta Platforms WhatsApp Incorrect Authorization Exploited Medium 5.4
• CVE-2022-36934 Integer overflow in WhatsApp Business for Android Critical 9.8
• CVE-2021-24042 Memory corruption in WhatsApp Business for Android Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-rrv8-x3gg-xhjg.