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CVE-2026-65052 is an improper input validation vulnerability in the Ninja Forms WordPress plugin affecting version 3.14.8 and earlier. The flaw occurs in calculation handling for ListSelect and ListRadio fields when form submissions are sent to the AJAX submit endpoint. By supplying values that do not correspond to any configured option, an unauthenticated attacker can trigger fail-open behavior in the get_calc_value() method, causing the application to accept attacker-controlled numeric values in place of expected configured values. This allows manipulation of form calculations and payment totals and bypasses administrator-defined pricing logic.
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A specific Ninja Forms vulnerability included in AISLE's public registry growth summary.
A payment total tampering vulnerability in the Ninja Forms WordPress plugin caused by fail-open get_calc_value handling in ListSelect and ListRadio fields.
An improper input validation vulnerability in the Ninja Forms WordPress plugin that allows unauthenticated attackers to tamper with form calculations and payment totals by submitting attacker-controlled values, potentially setting payment amounts to zero or arbitrary figures and bypassing pricing logic.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.