Vulnerabilities / Bit Form / WPSEC-2026-1516
Bit Form <= 3.3.1 - Unauthenticated Stored Cross-Site Scripting via SVG File Upload
High 7.2
CWE-79Fixed in 3.4.0
- ID
- WPSEC-2026-1516
- Plugin
- Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder (bit-form)
- Affected
- all versions before 3.4.0
- Remediation
- Update to 3.4.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-10-23
- Attack surface
- Bit Form on WPSec AttackSurface
- Fix released
- Published
Description
The Bit Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via uploaded SVG files in all versions up to, and including, 3.3.1 due to an outdated bundled SVG sanitizer that could be bypassed. This makes it possible for unauthenticated attackers, submitting a form that accepts SVG uploads, to inject arbitrary web scripts in SVG files that execute whenever a user accesses the uploaded file.
References
- https://wpsec.com/vuln/WPSEC-2026-1516/
- https://plugins.svn.wordpress.org/bit-form/tags/3.4.0/
- https://wordpress.org/plugins/bit-form/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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