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Fri, 20 Mar 2026 09:00:00 +0000
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Instantpopupbuilder
Instantpopupbuilder instant Popup Builder – Powerful Popup Maker For Opt-ins, Email Newsletters & Lead Generation Wordpress Wordpress wordpress |
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| Vendors & Products |
Instantpopupbuilder
Instantpopupbuilder instant Popup Builder – Powerful Popup Maker For Opt-ins, Email Newsletters & Lead Generation Wordpress Wordpress wordpress |
Thu, 19 Mar 2026 14:15:00 +0000
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ssvc
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Thu, 19 Mar 2026 08:00:00 +0000
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| Description | 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. | |
| Title | Instant Popup Builder <= 1.1.7 - Unauthenticated Arbitrary Shortcode Execution via 'token' Parameter | |
| Weaknesses | CWE-862 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-03-19T13:44:23.180Z
Reserved: 2026-03-03T13:12:45.335Z
Link: CVE-2026-3475
Updated: 2026-03-19T13:44:18.600Z
Status : Awaiting Analysis
Published: 2026-03-19T08:16:19.327
Modified: 2026-03-19T13:25:00.570
Link: CVE-2026-3475
No data.
OpenCVE Enrichment
Updated: 2026-03-20T08:57:13Z