CVE-2026-1782: medium-severity vulnerability in Wpmet MetForm Pro
MetForm Pro <= 3.9.7 - Unauthenticated Payment Amount Manipulation via 'mf-calculation'
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
The MetForm Pro plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 3.9.7 This is due to the payment integrations (Stripe/PayPal) trusting a user-submitted calculation field value without recomputing or validating it against the configured form price. This makes it possible for unauthenticated attackers to manipulate the payment amount via the 'mf-calculation' field in the form submission REST request granted there exists a specific form with this particular configuration.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
Wpmet · MetForm ProRelated CVEs — Wpmet MetForm Pro
In the same product, most dangerous first.