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CVE-2026-65048 is a critical unauthenticated stored cross-site scripting vulnerability in the Ninja Forms plugin for WordPress affecting versions 3.10.4 through 3.14.9. The flaw is in the Repeatable Fieldset feature. The vulnerable data flow described is that parseSubmissionIndex() accepts arbitrary strings as submission indexes without enforcing numeric validation, and admin_form_element() later inserts that index into generated HTML without proper escaping. An attacker can exploit this by submitting a public form containing a crafted repeater child key with attacker-controlled script content. When an administrator reviews the stored submission in the WordPress admin panel, the payload executes in the administrator’s browser in the context of the site.
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No public exploit code observed for this vulnerability.
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8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A specific Ninja Forms vulnerability included in AISLE's public registry growth summary.
An unauthenticated stored cross-site scripting vulnerability in the Ninja Forms WordPress plugin via repeatable fieldset submission index, allowing attacker-supplied script to execute in an administrator’s browser.
An unauthenticated stored cross-site scripting vulnerability in the Ninja Forms WordPress plugin Repeatable Fieldset feature affecting versions 3.10.4 through 3.14.9, allowing attacker-supplied script execution in an administrator's browser when viewing submissions.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.