CVE-2023-26523

Calculated Fields Form <= 1.1.120 - Missing Authorization to Feedback Submission

2023-02-28 00:00
István Márton

Strategic Overview

Status
Patched in 1.1.121
Affected Plugin
Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More
Affected Version
<= 1.1.120
CVSS
4.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2023-26523
View all Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More vulnerabilities

At a glance

CVE-2023-26523 is a medium-severity Missing Authorization vulnerability in the Calculated Fields Form WordPress plugin, affecting versions <= 1.1.120. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 1.1.121; sites on affected versions should update now. Disclosed February 2023, reported by István Márton.

Vulnerability Overview

The Calculated Fields Form plugin for WordPress is vulnerable to unauthorized access of functionality due to a missing capability check on the feedback_action function in versions up to, and including, 1.1.120. This makes it possible for authenticated attackers with subscriber-level access to provide plugin feedback on the site owner's behalf.

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 interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in Calculated Fields Form <= 1.1.120 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Calculated Fields Form the fix is 1.1.121: builds <= 1.1.120 are affected, anything from 1.1.121 onward is not.

Remediation

Update to version 1.1.121, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Calculated Fields Form 1.1.121 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-26523https://www.wordfence.com/threat-intel/vulnerabilities/id/9370f05a-9c69-45f4-9fd8-7017bfcf4d1ehttps://nvd.nist.gov/vuln/detail/CVE-2023-26523

Related records

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