CVE-2025-22823: Genesis Style Shortcodes XSS Vulnerability

CVE-2025-22823 Overview

CVE-2025-22823 is a DOM-based Cross-Site Scripting (XSS) vulnerability in the Genesis Style Shortcodes WordPress plugin by jtwerdy. The flaw stems from improper neutralization of user-supplied input during web page generation [CWE-79]. All plugin versions up to and including 1.0 are affected. Successful exploitation requires an authenticated user with low privileges and user interaction, such as clicking a crafted link. Because the vulnerability changes the scope of impact, it can affect resources beyond the vulnerable component. The issue was disclosed through Patchstack.

Critical Impact
Attackers can execute arbitrary JavaScript in a victim's browser session, enabling session hijacking, credential theft, and unauthorized actions within the WordPress site context.

Affected Products

jtwerdy Genesis Style Shortcodes plugin for WordPress
All versions from n/a through 1.0
WordPress sites using the genesis-style-shortcodes plugin

Discovery Timeline

2025-01-09 - CVE-2025-22823 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-22823

Vulnerability Analysis

CVE-2025-22823 is a DOM-based XSS flaw in the Genesis Style Shortcodes plugin. The plugin fails to properly sanitize input rendered by client-side JavaScript, allowing attacker-controlled data to be interpreted as executable script within the Document Object Model (DOM). Unlike reflected or stored XSS, DOM-based XSS executes entirely in the browser without the payload necessarily traversing server-side sinks.

Exploitation requires a low-privileged authenticated context and victim interaction. When a targeted user loads a crafted URL or interacts with a manipulated page component, malicious script executes under the origin of the WordPress site. The scope change indicates the payload can influence content or sessions outside the plugin's immediate boundary, such as the broader WordPress admin interface or logged-in user context.

Root Cause

The root cause is improper neutralization of input during web page generation [CWE-79]. Client-side code in the plugin writes attacker-influenced values into DOM sinks without contextual encoding or sanitization. Any string containing HTML or JavaScript metacharacters is parsed and executed by the browser.

Attack Vector

The attack is delivered over the network and requires a low-privileged authenticated user to interact with a crafted request or link. The vulnerability manifests in the plugin's shortcode handling logic where unsanitized data reaches a DOM sink. Refer to the Patchstack Vulnerability Report for the technical breakdown.

No verified proof-of-concept code is available in the referenced sources. The vulnerability mechanism is described in prose to avoid fabricating exploit details.

Detection Methods for CVE-2025-22823

Indicators of Compromise

Unexpected <script> tags or JavaScript event handlers appearing in rendered WordPress pages served by the plugin.
Outbound browser requests to unfamiliar domains originating from authenticated WordPress admin sessions.
WordPress access logs showing suspicious query parameters or fragment identifiers targeting genesis-style-shortcodes endpoints.

Detection Strategies

Inspect DOM output for the plugin's shortcodes to identify unencoded HTML or JavaScript content.
Deploy a Content Security Policy (CSP) in report-only mode to surface inline script execution attempts.
Correlate authenticated WordPress user activity with unusual client-side behavior in browser telemetry.

Monitoring Recommendations

Enable WordPress audit logging for plugin activity and low-privileged user actions such as contributors and subscribers.
Monitor web application firewall (WAF) logs for URL patterns containing script metacharacters directed at plugin pages.
Alert on new or modified administrative accounts and unexpected session activity following contributor logins.

How to Mitigate CVE-2025-22823

Immediate Actions Required

Deactivate and remove the Genesis Style Shortcodes plugin if a patched version is not available.
Audit low-privileged WordPress accounts and enforce strong authentication for all contributor-level and higher roles.
Deploy a strict Content Security Policy (CSP) to limit inline script execution across the WordPress site.

Patch Information

At the time of publication, no patched version is listed for the Genesis Style Shortcodes plugin. All versions through 1.0 remain affected. Administrators should track the Patchstack Vulnerability Report for updates and consider replacing the plugin with a maintained alternative.

Workarounds

Restrict plugin usage to trusted, high-privileged users only until a fix is published.
Configure a WAF rule to block requests containing common XSS payload patterns targeting the genesis-style-shortcodes plugin path.
Apply virtual patching through Patchstack or a comparable WordPress hardening service.

bash

# Example WordPress hardening: disable the vulnerable plugin via WP-CLI
wp plugin deactivate genesis-style-shortcodes
wp plugin delete genesis-style-shortcodes