WPForms CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

HIGH WPForms CVE published 2026-07-25

CVE-2026-10818

The WPForms Pro plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.10.1.1 via the ajax_chunk_upload_finalize function. This is due to the file type validation occurring after chunk metadata and file contents have already been written to disk, and the assembled file not being deleted upon validation failure. This makes it possible for unauthenticated attacke [truncated]

MEDIUM WPForms CVE published 2026-06-09

CVE-2026-4986

CVE-2026-4986 is a MEDIUM-severity vulnerability in the WPForms WordPress plugin. The plugin did not properly validate the authenticity of incoming PayPal webhook events prior to processing them. This could allow an unauthenticated attacker to forge webhook payloads and manipulate the payment state of arbitrary transactions.