{"cve":"CVE-2026-101326","nvd":{"published":"2026-10-31T06:16:31.217","modified":"2026-10-31T06:16:31.217","status":"Received","description":"The The Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 3.15.5 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes. Exploitation requires that an administrator has configured at least one Ninja Forms field with its Default Value set to the {wp:user_display_name} merge tag on a publicly accessible page; a Subscriber need only set their display_name to a shortcode string via their profile and then visit that page.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","score":5.4},"cwes":["CWE-94"],"references":["https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.4/includes/Abstracts/MergeTags.php#L94","https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.4/includes/Config/MergeTagsWP.php#L128","https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.4/includes/Display/Render.php#L268","https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.4/includes/Display/Render.php#L278","https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.15.4/includes/MergeTags/WP.php#L189"],"products":[],"source":"nvd","synced_at":"2026-10-31T06:43:41.782515125+00:00"},"epss":null,"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}