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Bit Form <= 2.13.3 — Authenticated (Administrator+) Arbitrary File Upload

CVE-2024-6123Published · Updated

Action summary

Affected: ≤2.13.3Update to 2.13.4 or newer

All remediation steps
Watch plugin
Severity
High7.2
CVSS
7.2
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:H Privileges required
High
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-434 Arbitrary File Upload
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder bit-form

  1. Affected≤ 2.13.3
  2. Patched in2.13.4

Update to 2.13.4 or newer.

You are affected if you run ≤ 2.13.3. Version 2.13.4 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 2.13.4, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to István Márton.

The Bit Form plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'iconUpload' function in all versions up to, and including, 2.13.3. This makes it possible for authenticated attackers, with administrator-level and above permissions, to upload arbitrary files on the affected site's server which may make remote code execution possible.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder

All 28
More vulnerabilities in Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder
SeverityVulnerabilityCVEPublished
Medium6.5Authenticated (Administrator+) SQL Injection via 'filterText' Parameter
≤3.2.0Update to 3.2.1
CVE-2026-16810
Medium4.4Authenticated (Administrator+) Stored Cross-Site Scripting
<3.1.4Update to 3.1.4
CVE-2025-15669
Medium5.3Missing Authorization to Unauthenticated Unauthorized Form Submission
<3.1.2Update to 3.1.2
CVE-2026-15054
High7.2Unauthenticated Stored Cross-Site Scripting
≤3.1.0Update to 3.2.0
CVE-2026-16573
High7.1Authenticated (Subscriber+) Arbitrary File Deletion via '_old' Parameter
≤3.1.1Update to 3.1.2
CVE-2026-14372

Same weakness (Arbitrary File Upload)

All Arbitrary File Upload
Other Arbitrary File Upload vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 7.2

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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