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WordPress plugin

Calculated Fields Form <= 5.2.45 — HTML Injection

CVE-2024-9940Published · Updated

Action summary

Affected: ≤5.2.45Update to 5.2.46 or newer

All remediation steps
Watch plugin
Severity
Medium5.3
CVSS
5.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:N Confidentiality
None
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-75 Failure to Sanitize Special Elements into a Different Plane
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More calculated-fields-form

  1. Affected≤ 5.2.45
  2. Patched in5.2.46

Update to 5.2.46 or newer.

You are affected if you run ≤ 5.2.45. Version 5.2.46 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 5.2.46, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Max Boll (_b0lli).

The Calculated Fields Form plugin for WordPress is vulnerable to HTML Injection in all versions up to, and including, 5.2.45. This is due to the plugin not properly neutralizing HTML elements from submitted forms. This makes it possible for unauthenticated attackers to inject arbitrary HTML that will render when the administrator views form submissions in their email.

Exploits & references

Proof-of-concept & detection

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

Advisories & patches

More in Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More

All 23
More vulnerabilities in Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting
≤5.5.2.8Update to 5.5.2.9
CVE-2026-124253
Medium6.1Reflected DOM-Based Cross-Site Scripting via URL Parameter Substitution in Calculated Field Equation
≤5.5.1.5Update to 5.5.1.6
CVE-2026-103909
Medium4.7Reflected DOM-Based Cross-Site Scripting via 'x' URL Query Parameter via Text Area Predefined Value
≤5.5.1.3Update to 5.5.1.4
CVE-2026-100184
Medium6.1Reflected DOM-Based Cross-Site Scripting via 'x' URL Parameter via setChoices()
≤5.5.1.3Update to 5.5.1.4
CVE-2026-100179
High7.2Unauthenticated Stored Cross-Site Scripting
≤5.5.1.1Update to 5.5.1.2
CVE-2026-95529

Timeline

  1. CVE published

    Severity medium, CVSS 5.3

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. 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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