CVE-2026-84906 Eventin < 4.1.24 - Unauthenticated Payment Bypass via Stripe and PayPal Cross-Order Transaction Replay
Unauthenticated attackers can mark unpaid orders as paid by replaying low-value payment transactions, bypassing payment verification in the Eventin 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-2026-84906?
CVE-2026-84906 is a medium-severity vulnerability in Unknown Eventin, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Eventin WordPress plugin before 4.1.24 does not verify that a completed payment corresponds to the order it is applied to, confirming only that the payment gateway reports the transaction as successful, not its amount, currency, or which order it belongs to, allowing unauthenticated visitors to mark unpaid orders of any value as paid by replaying the transaction of a single genuine low-value payment.
Weakness: CWE-345
Which versions are affected by CVE-2026-84906?
How do I fix CVE-2026-84906?
No fix has been published for CVE-2026-84906 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-84906 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-84906 exists.
Sources
Also known as GHSA-8p6x-g49r-wjj7.