Vanguard - Marketplace Digital Products PHP7 <= 2.1 - Cross-Site Scripting
Strategic Overview
- Status
- Unpatched
- Affected Plugin
- Vanguard - Marketplace Digital Products PHP7
- Affected Version
<= 2.1- CVSS
- 6.1Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2020-15537
At a glance
CVE-2020-15537 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Vanguard - Marketplace Digital Products PHP7 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. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed April 2020, reported by ThelastVvV.
Vulnerability Overview
An issue was discovered in the Vanguard plugin 2.1 for WordPress. XSS can occur via the mails/new title field, a product field to the p/ URI, or the Products Search box.
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 Vanguard - Marketplace Digital Products PHP7 <= 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. No fixed build of this plugin is recorded for Vanguard - Marketplace Digital Products PHP7 yet, so installs running <= 2.1 stay exposed until the vendor ships one.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
The attempt arrives as an ordinary request to Vanguard - Marketplace Digital Products PHP7: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Firewall
- Alerts
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C