WooCommerce Product Carousel, Slider & Grid Ultimate <= 1.8.6 - Authenticated (Contributor+) Stored Cross-Site Scripting

2022-08-05 00:00
Anonymous

Strategic Overview

Status
Patched in 1.8.7
Affected Plugin
Product Carousel Slider & Grid Ultimate for WooCommerce
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 pending
View all Product Carousel Slider & Grid Ultimate for WooCommerce vulnerabilities

At a glance

This record tracks a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Product Carousel Slider & Grid Ultimate for WooCommerce 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 at Contributor level or above. The issue is fixed in version 1.8.7; sites on affected versions should update now. Disclosed August 2022.

Vulnerability Overview

The WooCommerce Product Carousel, Slider & Grid Ultimate plugin for WordPress, versions up to and including 1.8.6, is vulnerable to Cross-Site Scripting. The script /includes/carousel.php (as well as other setting-related scripts) does not sanitize user input. This allows a lower-level user (contributor and higher) to insert JavaScript into the database.

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 Product Carousel Slider & Grid Ultimate for WooCommerce <= 1.8.6 takes an account at Contributor level or above. 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 Product Carousel Slider & Grid Ultimate for WooCommerce the fix is 1.8.7: builds <= 1.8.6 are affected, anything from 1.8.7 onward is not.

Remediation

Update to version 1.8.7, or a newer patched version

How does WordSec protect against this?

An attacker needs Contributor access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Product Carousel Slider & Grid Ultimate for WooCommerce 1.8.7 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/12ad3c6c-9a01-4801-b754-79e6e1b2d2a3

Related records

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