Is my WordPress plugin safe?

Not this one?Popup BuilderPopupKitBraveWP Popup BuilderPretty Simple Popup BuilderPop ups, Exit intent popups, email popups, banners, bars, countdowns and cart savers – PromolayerConvertForce Popup BuilderInstant Popup Builder

• Mar 19, 2026Instant Popup Builder: Unauthenticated Arbitrary Shortcode ExecutionCVE-2026-3475 · affects up to 1.1.7 · reported by WordfenceMedium 5.3

  The Instant Popup Builder plugin for WordPress is vulnerable to Unauthenticated Arbitrary Shortcode Execution in all versions up to and including 1.1.7. This is due to the handle_email_verification_page() function constructing a shortcode string from user-supplied GET parameters (token, email) and passing it to do_shortcode() without properly sanitizing square bracket characters, combined with missing authorization checks on the init hook. While sanitize_text_field() and esc_attr() are applied, neither function strips or escapes square bracket characters ([ and ]). WordPress's shortcode regex uses [^\]\/]* to match content inside shortcode tags, meaning a ] character in the token value prematurely closes the shortcode tag. This makes it possible for unauthenticated attackers to inject and execute arbitrary registered shortcodes by crafting a malicious token parameter containing ] followed by arbitrary shortcode syntax.

  NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org

Versions are matched against the affected ranges published with each record. A plugin can ship a fix under its own numbering, so if something looks off, check the linked record. Want the whole site checked at once? Run the free website check.