CVE-2021-24262

WooLentor – WooCommerce Elementor Addons + Builder <= 1.8.5 - Authenticated Stored Cross-Site Scripting

2021-04-13 00:00

Strategic Overview

Status: Patched in 1.8.6
Affected Plugin: ShopLentor – All-in-One WooCommerce Growth & Store Enhancement Plugin
Affected Version: < 1.8.6
CVSS: 6.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2021-24262

View all ShopLentor – All-in-One WooCommerce Growth & Store Enhancement Plugin vulnerabilities

At a glance

CVE-2021-24262 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the ShopLentor WordPress plugin, affecting versions < 1.8.6. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 1.8.6; sites on affected versions should update now. Disclosed April 2021, reported by Ram.

Vulnerability Overview

The “WooLentor – WooCommerce Elementor Addons + Builder” WordPress Plugin before 1.8.6 has a widget that is vulnerable to stored Cross-Site Scripting (XSS) by lower-privileged users such as contributors, all via a similar method.

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

Reaching this weakness in ShopLentor < 1.8.6 takes any authenticated account. 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 ShopLentor the fix is 1.8.6: builds < 1.8.6 are affected, anything from 1.8.6 onward is not.

Remediation

Update to version 1.8.6, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to ShopLentor: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: ShopLentor 1.8.6 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24262 https://www.wordfence.com/threat-intel/vulnerabilities/id/2edc7c4d-598d-4c9c-9aad-ccc97f6a3ac0 https://nvd.nist.gov/vuln/detail/CVE-2021-24262

Related records

Same weakness class

Other vulnerabilities in ShopLentor – All-in-One WooCommerce Growth & Store Enhancement Plugin

CVSS Vector

6.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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