CVE-2025-58814: Stagtools Stored XSS Vulnerability

CVE-2025-58814 Overview

CVE-2025-58814 is a stored Cross-Site Scripting (XSS) vulnerability in the Stagtools WordPress plugin developed by Ram Ratan Maurya. The flaw affects all versions of Stagtools up to and including 2.3.8. It is classified under [CWE-79] for improper neutralization of input during web page generation. Authenticated attackers with low privileges can inject malicious scripts that execute in the browsers of other users viewing the affected pages. The vulnerability requires user interaction and results in a scope change, allowing the injected payload to affect components beyond the initial vulnerable context.

Critical Impact
Authenticated attackers can inject persistent JavaScript payloads that execute in administrator or visitor browsers, enabling session hijacking, credential theft, and unauthorized administrative actions.

Affected Products

Ram Ratan Maurya Stagtools plugin for WordPress
All versions from initial release through 2.3.8
WordPress sites with Stagtools installed and active

Discovery Timeline

2025-09-05 - CVE-2025-58814 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-58814

Vulnerability Analysis

The Stagtools plugin fails to properly neutralize user-supplied input before rendering it within generated web pages. This allows an authenticated attacker with contributor-level or higher privileges to store crafted JavaScript payloads within plugin-managed content. When another user, such as an administrator or site visitor, loads the affected page, the malicious script executes in their browser session.

The scope change indicated in the vulnerability metrics means the injected payload can affect resources beyond the vulnerable component, including the wider WordPress administrative interface. Successful exploitation can lead to session token theft, forced administrative actions, redirection to malicious sites, or delivery of secondary payloads.

Root Cause

The root cause is missing or insufficient output encoding and input sanitization in one or more Stagtools plugin features that accept user input and later render it into HTML. The plugin does not enforce a strict allow-list of HTML tags or escape special characters before echoing values into page markup. This omission enables persistence of script tags and event handlers across page loads.

Attack Vector

Exploitation occurs over the network against the WordPress site. The attacker authenticates with low-privilege credentials, submits a payload through a Stagtools input field, and waits for a privileged user to view the injected content. User interaction is required to trigger the payload. Refer to the Patchstack WordPress Vulnerability Report for additional technical details on the injection point.

Detection Methods for CVE-2025-58814

Indicators of Compromise

Unexpected <script> tags, javascript: URIs, or DOM event handlers such as onerror and onload stored in WordPress post metadata, options, or Stagtools-managed content
Outbound requests from administrator browsers to unfamiliar domains shortly after loading pages that render Stagtools shortcodes or widgets
Creation of new WordPress administrator accounts or unexpected privilege changes following administrator page views

Detection Strategies

Audit the WordPress database for Stagtools-related entries containing HTML or JavaScript syntax using targeted SQL queries against wp_posts, wp_postmeta, and wp_options
Deploy a Web Application Firewall (WAF) ruleset that flags stored XSS patterns submitted to plugin endpoints
Review WordPress access logs for POST requests from low-privilege accounts targeting Stagtools administrative pages

Monitoring Recommendations

Enable WordPress activity logging to record content submissions and edits performed by contributor and author accounts
Monitor Content Security Policy (CSP) violation reports for inline script execution on admin and public pages
Track browser telemetry from administrator workstations for anomalous script execution or cross-origin requests

How to Mitigate CVE-2025-58814

Immediate Actions Required

Identify all WordPress installations running the Stagtools plugin at version 2.3.8 or earlier
Restrict low-privilege account creation and audit existing contributor and author accounts for legitimacy
Temporarily deactivate the Stagtools plugin on high-value sites until a patched release is verified and applied

Patch Information

At the time of publication, the vulnerability is documented as affecting Stagtools versions through 2.3.8 without a confirmed fixed version listed in the NVD entry. Site administrators should monitor the Patchstack WordPress Vulnerability Report and the plugin's official WordPress.org listing for a patched release, and apply it immediately once available.

Workarounds

Remove or deactivate the Stagtools plugin if it is not essential to site operations
Enforce a strict Content Security Policy that blocks inline script execution and unauthorized external script sources
Limit editorial privileges to trusted users and require multi-factor authentication for all accounts that can submit content
Deploy a WAF with rules targeting stored XSS payloads directed at WordPress plugin endpoints

bash

# Example WordPress CLI command to deactivate the vulnerable plugin
wp plugin deactivate stagtools
wp plugin status stagtools