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CVE-2026-101921

Reflected XSS in WPForms before 2.0.2.1

CVSS 3.1
4.7 medium
EPSS
—
Published
·
Modified
Analyze CVE-2026-101921 with Vani AIImpact, affected versions, exploitation status, mitigations and detection

The WPForms plugin for WordPress allows unauthenticated reflected cross-site scripting when an administrator embeds a {query_var} smart tag in an iframe srcdoc attribute. An attacker tricks a user into clicking a malicious link on a page where Show Description is enabled. This executes injected scripts and affects any such WordPress site.

What to do: Apply Wordfence's update for CVE-2026-101921.

ProductAffected
Wordfence WPForms2.0.2.1
Estimated exposure
nicheNo basis for an estimate.

Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.

Description · NVD

The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'attacker-chosen key referenced by the smart tag (e.g. "x")' parameter in all versions up to, and including, 2.0.2.1 due to insufficient input sanitization and output escaping. 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. Exploitation requires that a site administrator has previously saved a form whose description embeds a {query_var} Smart Tag inside an iframe srcdoc attribute and has enabled Show Description on a public-facing page.

Ecosystems
WordPress
Weakness
CWE-79
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

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