CVE-2021-24178

Business Directory Plugin < 5.11 - Cross-Site Request Forgery

2021-04-11 00:00

Strategic Overview

Status: Patched in 5.11.1
Affected Plugin: Business Directory Plugin – Easy Listing & Member Directories for WordPress
Affected Version: <= 5.11
CVSS: 8.8High
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2021-24178

View all Business Directory Plugin – Easy Listing & Member Directories for WordPress vulnerabilities

At a glance

CVE-2021-24178 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the Business Directory Plugin WordPress plugin, affecting versions <= 5.11. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 5.11.1; sites on affected versions should update now. Disclosed April 2021, reported by 0xB9.

Vulnerability Overview

The Business Directory Plugin – Easy Listing Directories for WordPress WordPress plugin before 5.11.1 suffered from Cross-Site Request Forgery issues, allowing an attacker to make a logged in administrator add, edit or delete form fields, which could also lead to Stored Cross-Site Scripting issues.

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. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Business Directory Plugin <= 5.11 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Business Directory Plugin the fix is 5.11.1: builds <= 5.11 are affected, anything from 5.11.1 onward is not.

Remediation

Update to version 5.11.1, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Business Directory Plugin: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Business Directory Plugin 5.11.1 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24178 https://www.wordfence.com/threat-intel/vulnerabilities/id/2984b9ca-e821-4c23-b792-4d0e54e44a7c https://nvd.nist.gov/vuln/detail/CVE-2021-24178

Related records

Same weakness class

Other vulnerabilities in Business Directory Plugin – Easy Listing & Member Directories for WordPress

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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