CVE-2025-47574: mojoomla School Management XSS Flaw

CVE-2025-47574 Overview

CVE-2025-47574 is a Reflected Cross-Site Scripting (XSS) vulnerability affecting the mojoomla School Management plugin for WordPress. This vulnerability stems from improper neutralization of input during web page generation (CWE-79), allowing attackers to inject malicious scripts that execute in the context of a victim's browser session.

The vulnerability requires user interaction to exploit, as victims must be tricked into clicking a malicious link containing the XSS payload. Once triggered, the injected script can steal session cookies, hijack user accounts, deface web content, or redirect users to malicious sites.

Critical Impact

Attackers can execute arbitrary JavaScript in authenticated user sessions, potentially compromising administrator accounts and gaining full control over WordPress sites running the vulnerable School Management plugin.

Affected Products

• mojoomla School Management plugin versions through 92.0.0
• WordPress installations with the School Management plugin enabled
• All user sessions accessible through the affected web interface

Discovery Timeline

• 2025-06-27 - CVE-2025-47574 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-47574

Vulnerability Analysis

This Reflected XSS vulnerability occurs when the School Management plugin fails to properly sanitize user-supplied input before reflecting it back in HTTP responses. The plugin processes URL parameters or form inputs without adequate encoding or validation, allowing malicious JavaScript code to be embedded in the server's response.

Reflected XSS attacks require social engineering to deliver the malicious payload to victims. Attackers typically craft URLs containing JavaScript payloads and distribute them via phishing emails, social media, or compromised websites. When a victim clicks the link while authenticated to the WordPress site, the malicious script executes with the victim's privileges.

The scope change indicated in the vulnerability assessment means the attack can impact resources beyond the vulnerable component itself, potentially affecting other origins or security contexts within the browser.

Root Cause

The root cause of CVE-2025-47574 is insufficient input validation and output encoding within the School Management plugin. The vulnerable code path accepts user-controlled data and incorporates it directly into HTML output without proper sanitization using WordPress security functions such as esc_html(), esc_attr(), or wp_kses().

This implementation oversight violates secure coding principles that require all untrusted input to be treated as potentially malicious and properly encoded before being rendered in web pages.

Attack Vector

The attack vector is network-based and requires user interaction. An attacker constructs a specially crafted URL containing JavaScript code as a parameter value. The attack flow follows this pattern:

1. Attacker identifies the vulnerable parameter in the School Management plugin
2. Attacker crafts a malicious URL embedding JavaScript payload
3. Victim is tricked into clicking the link (via phishing, social engineering, etc.)
4. WordPress processes the request and reflects the malicious input in the response
5. Victim's browser executes the injected JavaScript in the context of the WordPress site
6. Attacker achieves session hijacking, credential theft, or other malicious objectives

The vulnerability enables attacks that can modify page content, steal authentication cookies, capture keystrokes, or perform actions on behalf of the authenticated user.

Detection Methods for CVE-2025-47574

Indicators of Compromise

• Unusual URL parameters containing encoded JavaScript or HTML tags in server access logs
• Browser console errors indicating blocked inline script execution (if CSP is enabled)
• User reports of unexpected redirects or pop-ups when accessing School Management plugin pages
• Authentication logs showing session usage from unexpected IP addresses or locations

Detection Strategies

• Monitor web application firewall (WAF) logs for XSS payload patterns targeting School Management plugin endpoints
• Review server access logs for requests containing suspicious characters like <script>, javascript:, or encoded variants (%3Cscript%3E)
• Implement browser-based Content Security Policy (CSP) reporting to detect inline script execution attempts
• Deploy runtime application self-protection (RASP) solutions to detect XSS exploitation in real-time

Monitoring Recommendations

• Enable detailed logging for the School Management plugin and monitor for malformed input patterns
• Configure alerts for unusual authentication patterns that may indicate session hijacking
• Implement web traffic analysis to identify potential XSS delivery attempts via referrer analysis
• Monitor for newly created administrator accounts or privilege changes that may result from successful exploitation

How to Mitigate CVE-2025-47574

Immediate Actions Required

• Update the mojoomla School Management plugin to a patched version when available from the vendor
• Review WordPress user accounts for any unauthorized access or privilege modifications
• Implement a Web Application Firewall (WAF) with XSS filtering rules as a compensating control
• Force password resets for administrative accounts if exploitation is suspected

Patch Information

Refer to the Patchstack Vulnerability Report for the latest information on available patches and remediation guidance from the vendor. Sites running School Management plugin version 92.0.0 or earlier should prioritize updating to a patched release.

Workarounds

• Deploy a Web Application Firewall (WAF) configured to block common XSS payloads as a temporary mitigation
• Implement Content Security Policy (CSP) headers to restrict inline script execution and mitigate XSS impact
• Restrict access to the School Management plugin administrative interface to trusted IP addresses
• Consider temporarily disabling the plugin until a security update is available if the risk is deemed unacceptable

# Example: Add Content Security Policy header in WordPress .htaccess
# This helps mitigate XSS impact by preventing inline script execution
<IfModule mod_headers.c>
    Header set Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline';"
</IfModule>