CVE-2022-50970: WordPress AAWP Plugin XSS Vulnerability

CVE-2022-50970 Overview

CVE-2022-50970 is a reflected cross-site scripting (XSS) vulnerability in the WordPress plugin Amazon Affiliate WordPress Plugin (AAWP) version 3.16. The flaw exists in the aawp-settings admin page, where the tab parameter is reflected into the response without proper sanitization or encoding. An authenticated attacker can craft a URL containing JavaScript payloads in the tab parameter and trick an authenticated WordPress user into visiting it. The injected script executes in the browser context of the victim, enabling session abuse, administrative action forgery, and content manipulation within the WordPress dashboard. The weakness is classified under CWE-79.

Critical Impact
Authenticated attackers can execute arbitrary JavaScript in the WordPress admin context by delivering malicious links targeting the tab parameter of the AAWP settings page.

Affected Products

WordPress Plugin AAWP (Amazon Affiliate WordPress Plugin) version 3.16
WordPress installations using vulnerable AAWP builds
Administrative sessions interacting with the aawp-settings page

Discovery Timeline

2026-05-10 - CVE-2022-50970 published to the National Vulnerability Database
2026-05-12 - Last updated in NVD database

Technical Details for CVE-2022-50970

Vulnerability Analysis

The vulnerability resides in the AAWP plugin's settings interface at the aawp-settings admin page. The plugin accepts a tab query parameter to determine which configuration section to render. The value of this parameter is reflected back into the generated HTML response without proper output encoding or input validation. An attacker who can deliver a crafted URL to an authenticated WordPress user causes the supplied payload to render inside the administrative page. The browser then parses the injected markup and executes attacker-controlled JavaScript under the same origin as the WordPress installation.

Because the script runs inside an authenticated administrative session, the attacker can issue privileged requests through the WordPress REST API or admin-ajax endpoints. Outcomes include creating new administrator accounts, modifying plugin configuration, injecting persistent content, or exfiltrating session cookies that are not marked HttpOnly.

Root Cause

The root cause is missing output encoding of the tab request parameter when AAWP renders the settings page template. User-controlled input flows directly into HTML output without passing through WordPress sanitization functions such as esc_attr() or esc_html(). The plugin also does not validate that the tab value matches an allowlist of expected tab identifiers.

Attack Vector

Exploitation requires user interaction. An attacker crafts a URL pointing to the WordPress admin's aawp-settings page with a malicious payload embedded in the tab parameter. The attacker delivers the link through phishing, forum posts, or social engineering. When an authenticated administrator clicks the link, the payload is reflected into the response and executed by the browser. Refer to the Vulncheck Advisory for AAWP and Exploit-DB #50643 for technical details of the reflected payload pattern.

Detection Methods for CVE-2022-50970

Indicators of Compromise

HTTP GET requests to /wp-admin/admin.php?page=aawp-settings containing script tags, javascript: URIs, or event handler attributes in the tab parameter
URL-encoded payloads such as %3Cscript%3E, %3Cimg, or onerror= appearing in referer logs for admin pages
Unexpected administrative account creation or plugin configuration changes following access to the AAWP settings page
Outbound requests from administrator browsers to attacker-controlled domains shortly after visiting AAWP admin URLs

Detection Strategies

Inspect web server access logs for requests targeting aawp-settings with non-alphanumeric characters in the tab query parameter
Deploy Web Application Firewall (WAF) rules that block reflected XSS payload patterns on WordPress admin endpoints
Correlate referer headers and admin session activity to identify links arriving from untrusted external sources

Monitoring Recommendations

Enable WordPress audit logging for administrator actions, plugin configuration changes, and user role modifications
Forward WordPress and web server logs to a centralized SIEM for query-based hunting of XSS payload signatures
Alert on creation of new administrator accounts or modifications to AAWP plugin settings outside maintenance windows

How to Mitigate CVE-2022-50970

Immediate Actions Required

Upgrade the AAWP plugin to a version newer than 3.16 that addresses the reflected XSS in the tab parameter
Restrict access to the /wp-admin/ directory by source IP address where operationally feasible
Require administrators to authenticate through unique browser sessions and avoid clicking external links while logged into WordPress

Patch Information

Update AAWP to a fixed release published after version 3.16. Consult the AAWP vendor site for the latest release notes and download the current plugin build. After updating, verify the installed version through the WordPress plugins dashboard and confirm that the tab parameter is properly sanitized on the settings page.

Workarounds

Disable or remove the AAWP plugin until the patched version is installed if Amazon affiliate functionality is not business-critical
Apply a WAF rule that strips or rejects requests to aawp-settings containing HTML metacharacters in the tab parameter
Enforce a strict Content Security Policy (CSP) on the WordPress admin interface to limit inline script execution

bash

# Example ModSecurity rule to block reflected XSS payloads in the tab parameter
SecRule ARGS:tab "@rx (?i)(<script|javascript:|onerror=|onload=)" \
    "id:1009701,\
    phase:2,\
    deny,\
    status:403,\
    msg:'CVE-2022-50970 AAWP reflected XSS attempt blocked',\
    tag:'application-multi',\
    tag:'attack-xss'"