CVE-2023-40011

Cost Calculator Builder <= 3.1.42 - Improper Authorization

2023-08-17 00:00

Strategic Overview

Status: Patched in 3.1.43
Affected Plugin: Cost Calculator Builder
Affected Version: < 3.1.43
CVSS: 5.4Medium
Weakness type: CWE-285 · Improper Authorization
CVE: CVE-2023-40011

View all Cost Calculator Builder vulnerabilities

At a glance

CVE-2023-40011 is a medium-severity Improper Authorization vulnerability in the Cost Calculator Builder WordPress plugin, affecting versions < 3.1.43. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). The issue is fixed in version 3.1.43; sites on affected versions should update now. Disclosed August 2023, reported by Rafshanzani Suhada.

Vulnerability Overview

The Cost Calculator Builder plugin for WordPress is vulnerable to unauthorized modification of data due to improper capability checks on multiple functions in versions up to, and including, 3.1.42. This makes it possible for authenticated attackers with Author permissions to manage the plugin's settings.

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-285: Improper Authorization

Reaching this weakness in Cost Calculator Builder < 3.1.43 takes a caller who can reach the endpoint. Improper authorization means a permission check exists but does not cover the case being exercised, so a caller who is allowed to do one thing is allowed to do a neighbouring thing as well.

A lower-privileged account performs an action reserved for a higher one, which on a multi-author or membership site means an ordinary user reaching administrative behaviour. For Cost Calculator Builder the fix is 3.1.43: builds < 3.1.43 are affected, anything from 3.1.43 onward is not.

Remediation

Update to version 3.1.43, 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: Cost Calculator Builder 3.1.43 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-40011 https://www.wordfence.com/threat-intel/vulnerabilities/id/94d60fcb-a542-41a9-b6ac-6ac2607068aa https://nvd.nist.gov/vuln/detail/CVE-2023-40011

Related records

Other vulnerabilities in Cost Calculator Builder

CVSS Vector

5.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityLow

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