The Contact Form by Bit Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 2.18.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.
CVE-2025-2580 is a medium severity with CVSS 4.9 File Upload issue affecting the Plugin Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder. It affects Versions up to 2.18.3 and is fixed in 2.18.4.
Use the related hub and response guides to connect this CVE-2025-2580 report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
CVE-2025-2580 is tracked for the Plugin Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder as medium severity with CVSS 4.9. The affected range is Versions up to 2.18.3. Update Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder to 2.18.4 or newer where that version is compatible with the site.
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions up to 2.18.3.
Confirm Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder is updated to 2.18.4 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
bit-form
View on wordpress.org
|
| CVE | CVE-2025-2580 |
| Patched Versions |
2.18.4
|
| Affected Versions |
Versions up to 2.18.3
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Contact Form by Bit Form - Bit Form <= 2.20.3 - Unauthenticated Arbitrary File Upload
Bit Form <= 1.8.1 - Unauthenticated Arbitrary File Upload to Remote Code Execution
Contact Form by Bit Form: Multi Step Form, Calculation Contact Form, Payment Contact Form & Custom Contact Form builder 2.0 - 2.13.9 - Authenticated (Administrator+) Arbitrary File Read And Deletion
Contact Form by Bit Form: Multi Step Form, Calculation Contact Form, Payment Contact Form & Custom Contact Form builder 2.0 - 2.13.4 - Authenticater (Administrator+) Arbitrary File Deletion
Bit Form – Contact Form Plugin <= 2.18.0 - Open Redirect
Bit Form – Contact Form Plugin <= 2.13.10 - Authenticated (Administrator+) Arbitrary File Upload
Bit Form – Contact Form Plugin <= 2.13.10 - Unauthenticated Stored Cross-Site Scripting
Contact Form by Bit Form: Multi Step Form, Calculation Contact Form, Payment Contact Form & Custom Contact Form builder 2.0 - 2.13.9 - Authenticated (Administrator+) SQL Injection via getLogHistory Function
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