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Wed, 08 Apr 2026 19:45:00 +0000
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Gravityforms
Gravityforms gravity Forms Wordpress Wordpress wordpress |
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Gravityforms
Gravityforms gravity Forms Wordpress Wordpress wordpress |
Wed, 08 Apr 2026 16:15:00 +0000
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ssvc
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Tue, 07 Apr 2026 23:30:00 +0000
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| Description | The Gravity Forms plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `form_ids` parameter in the `gform_get_config` AJAX action in all versions up to, and including, 2.9.30. This is due to the `GFCommon::send_json()` method outputting JSON-encoded data wrapped in HTML comment delimiters using `echo` and `wp_die()`, which serves the response with a `Content-Type: text/html` header instead of `application/json`. The `wp_json_encode()` function does not HTML-encode angle brackets within JSON string values, allowing injected HTML/script tags in `form_ids` array values to be parsed and executed by the browser. The required `config_nonce` is generated with `wp_create_nonce('gform_config_ajax')` and is publicly embedded on every page that renders a Gravity Forms form, making it identical for all unauthenticated visitors within the same 12-hour nonce tick. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. This vulnerability cannot be exploited against users who are authenticated on the target system, but could be used to alter the target page. | |
| Title | Gravity Forms <= 2.9.30 - Reflected Cross-Site Scripting via 'form_ids' Parameter | |
| Weaknesses | CWE-79 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-04-08T16:48:35.829Z
Reserved: 2026-03-18T20:50:03.678Z
Link: CVE-2026-4406
Updated: 2026-04-08T15:15:15.355Z
Status : Deferred
Published: 2026-04-08T00:16:05.490
Modified: 2026-04-27T19:04:22.650
Link: CVE-2026-4406
No data.
OpenCVE Enrichment
Updated: 2026-04-08T19:45:07Z