CVE-2015-9523

Easy Digital Downloads – Recommended Products <= 1.2.3.2 - Cross-Site Scripting

2015-04-20 00:00
Sucuri Research Team

Strategic Overview

Status
Patched in 1.2.3.3
Affected Version
<= 1.2.3.2
CVSS
6.1Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2015-9523
View all Recommended Products - EDD vulnerabilities

At a glance

CVE-2015-9523 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Recommended Products - EDD WordPress plugin, affecting versions <= 1.2.3.2. 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 1.2.3.3; sites on affected versions should update now. Disclosed April 2015, reported by Sucuri Research Team.

Vulnerability Overview

The Easy Digital Downloads (EDD) Recommended Products extension for WordPress, as used with EDD 1.8.x before 1.8.7, 1.9.x before 1.9.10, 2.0.x before 2.0.5, 2.1.x before 2.1.11, 2.2.x before 2.2.9, and 2.3.x before 2.3.7, has XSS because add_query_arg is misused.

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 Recommended Products - EDD <= 1.2.3.2 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 Recommended Products - EDD the fix is 1.2.3.3: builds <= 1.2.3.2 are affected, anything from 1.2.3.3 onward is not.

Remediation

Update to version 1.2.3.3, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Recommended Products - EDD: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Recommended Products - EDD 1.2.3.3 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C