CVE-2026-16962 Tamara Checkout <= 1.9.9.20 - Unauthenticated Order Status Manipulation
Unauthenticated attackers can manipulate WooCommerce order statuses by enumerating IDs due to missing authorization checks in the Tamara Checkout plugin.
- 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-2026-16962?
CVE-2026-16962 is a medium-severity missing authorization vulnerability in Unknown Tamara Checkout, published on 21 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Tamara Checkout WordPress plugin through 1.9.9.20 does not verify the order key, a nonce, or any capability on its public payment cancel/fail return URLs, changing a WooCommerce order's status based solely on an attacker-supplied numeric order id, so an unauthenticated attacker can cancel or fail arbitrary orders store-wide by enumerating ids (triggering downstream stock-release and notification side-effects).
Weakness: CWE-862
Which versions are affected by CVE-2026-16962?
How do I fix CVE-2026-16962?
No fix has been published for CVE-2026-16962 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-16962 being exploited?
There is no known exploitation of CVE-2026-16962 in the wild and no public exploit code.
Sources
Also known as GHSA-qmfm-8v44-p8r3.