Microsoft Advertising Universal Event Tracking (UET) <= 1.0.3 - Authenticated Stored Cross-Site Scripting
Strategic Overview
- Status
- Patched in 1.0.4
- Affected Plugin
- Microsoft Advertising Universal Event Tracking (UET)
- Affected Version
<= 1.0.3- CVSS
- 5.5Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2022-2170
At a glance
CVE-2022-2170 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Microsoft Advertising Universal Event Tracking (UET) WordPress plugin, affecting versions <= 1.0.3. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 1.0.4; sites on affected versions should update now. Disclosed July 2022, reported by Chowdhury Faizal Ahammed.
Vulnerability Overview
The Microsoft Advertising Universal Event Tracking (UET) WordPress plugin before 1.0.4 does not sanitise and escape its settings, allowing high privilege users such as admin to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed. Due to the nature of this plugin, well crafted XSS can also leak into the frontpage.
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 Microsoft Advertising Universal Event Tracking (UET) <= 1.0.3 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 Microsoft Advertising Universal Event Tracking (UET) the fix is 1.0.4: builds <= 1.0.3 are affected, anything from 1.0.4 onward is not.
Remediation
Update to version 1.0.4, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Microsoft Advertising Universal Event Tracking (UET): WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Microsoft Advertising Universal Event Tracking (UET) 1.0.4 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