CVE-2021-24389

FoodBakery | Delivery Restaurant Directory WordPress Theme <= 2.1 - Reflected Cross-Site Scripting

2021-06-14 00:00

Strategic Overview

Status: Patched in 2.2
Affected Plugin: WP Foodbakery
Affected Version: <= 2.1
CVSS: 6.1Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2021-24389

At a glance

CVE-2021-24389 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the WP Foodbakery WordPress plugin, affecting versions <= 2.1. 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 2.2; sites on affected versions should update now. Disclosed June 2021, reported by Truoc Phan.

Vulnerability Overview

The WP Foodbakery WordPress plugin before 2.2, used in the FoodBakery WordPress theme before 2.2 did not properly sanitize the foodbakery_radius parameter before outputting it back in the response, leading to an unauthenticated Reflected Cross-Site Scripting (XSS) vulnerability.

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 WP Foodbakery <= 2.1 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 WP Foodbakery the fix is 2.2: builds <= 2.1 are affected, anything from 2.2 onward is not.

Remediation

Update to version 2.2, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WP Foodbakery: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Foodbakery 2.2 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24389 https://www.wordfence.com/threat-intel/vulnerabilities/id/6c9e5cd4-303c-48a7-aef8-20c804aa5985 https://nvd.nist.gov/vuln/detail/CVE-2021-24389

Related records

Same weakness class

Other vulnerabilities in WP Foodbakery

CVSS Vector

6.1

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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