CVE-2026-84906

Medium

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.

SeverityMedium
CVSS5.3
Exploit probability—
ProductEventin
PublishedSep 16, 2026
First seenSep 16, 2026
Weakness typeCWE-345CWE-345

How to fix

Update
  • Eventin4.1.24 or later

Affected products

ProductAffected versionsFixed in
Eventinv < 4.1.244.1.24

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Choose the product and enter the version you run to see whether it falls in the affected range.

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