CVE-2026-16538 TeraWallet - Wallet for WooCommerce < 1.6.10 - Subscriber+ Wallet Balance Inflation via Discounted Top-Up

Critical 9.1 Published Updated

Attackers can inflate their wallet balance by paying less than the credited amount due to missing verification in the top-up process.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-16538?

CVE-2026-16538 is a critical vulnerability in Unknown Wallet for WooCommerce, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Wallet for WooCommerce WordPress plugin before 1.6.10 does not verify the amount actually collected for a wallet top-up before crediting the wallet, allowing customers to top up their wallet balance for less than its value.

Weakness: CWE-284

Which versions are affected by CVE-2026-16538?

How do I fix CVE-2026-16538?

No fix has been published for CVE-2026-16538 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-16538 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16538 exists.

Sources

Also known as GHSA-v8f5-5g5w-8qm3.

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