CVE-2024-29759

Calculated Fields Form <= 1.2.54 - Reflected Cross-Site Scripting

2024-03-25 00:00
Rafie Muhammad

Strategic Overview

Status
Patched in 1.2.55
Affected Plugin
Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More
Affected Version
<= 1.2.54
CVSS
6.1Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2024-29759
View all Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More vulnerabilities

At a glance

CVE-2024-29759 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Calculated Fields Form WordPress plugin, affecting versions <= 1.2.54. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.2.55; sites on affected versions should update now. Disclosed March 2024, reported by Rafie Muhammad.

Vulnerability Overview

The Calculated Fields Form plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via multiple parameters in versions up to, and including, 1.2.54 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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Calculated Fields Form <= 1.2.54 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Calculated Fields Form the fix is 1.2.55: builds <= 1.2.54 are affected, anything from 1.2.55 onward is not.

Remediation

Update to version 1.2.55, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Calculated Fields Form: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Calculated Fields Form 1.2.55 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-29759https://www.wordfence.com/threat-intel/vulnerabilities/id/6a76116a-1e84-4114-9baa-3986be92d051https://nvd.nist.gov/vuln/detail/CVE-2024-29759

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C