CVE-2025-24560: Awesome Event Booking XSS Vulnerability

CVE-2025-24560 Overview

CVE-2025-24560 is a Cross-Site Scripting (XSS) vulnerability affecting the Awesome Event Booking WordPress plugin developed by AwesomeTOGI. This reflected XSS vulnerability allows attackers to inject malicious scripts into web pages that are then executed in the context of a victim's browser session. The vulnerability stems from improper neutralization of user-supplied input during web page generation.

Critical Impact

Attackers can execute arbitrary JavaScript code in victims' browsers, potentially stealing session cookies, performing actions on behalf of authenticated users, or redirecting users to malicious websites.

Affected Products

• Awesome Event Booking WordPress Plugin versions through 2.7.1
• WordPress installations with the awesome-event-booking plugin installed
• All users visiting pages with the vulnerable plugin functionality

Discovery Timeline

• 2025-01-31 - CVE-2025-24560 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-24560

Vulnerability Analysis

This vulnerability is classified as CWE-79: Improper Neutralization of Input During Web Page Generation, commonly known as Cross-Site Scripting (XSS). The reflected XSS variant means that malicious payloads are not stored on the server but are instead reflected back to users through URL parameters or form inputs that are not properly sanitized before being rendered in the HTML response.

The vulnerability requires user interaction to be exploited, as victims must click on a crafted link or be redirected to a malicious URL containing the XSS payload. Once executed, the injected JavaScript runs with the same privileges as the legitimate site, enabling session hijacking, credential theft, or defacement attacks.

Root Cause

The root cause of this vulnerability is insufficient input validation and output encoding within the Awesome Event Booking plugin. User-supplied data is included in HTTP responses without proper sanitization or escaping, allowing attackers to inject executable script content. The plugin fails to implement proper security controls such as Content Security Policy headers or context-aware output encoding that would prevent malicious script execution.

Attack Vector

The attack vector for this vulnerability is network-based, requiring an attacker to craft a malicious URL containing the XSS payload and trick a victim into clicking the link. This can be accomplished through phishing emails, social engineering, or embedding the malicious link in forums or comments. When the victim clicks the link, the vulnerable WordPress plugin reflects the unsanitized payload back into the page, where it executes in the victim's browser context.

The attack mechanism involves injecting JavaScript code through vulnerable input parameters that are improperly handled by the plugin. When the server processes the request and generates the response page, the malicious script is included without proper encoding. Technical details and vulnerability specifics can be found in the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-24560

Indicators of Compromise

• Unusual URL parameters containing JavaScript code or HTML tags in requests to WordPress pages utilizing the Awesome Event Booking plugin
• Web server logs showing requests with encoded or obfuscated script tags (<script>, javascript:, onerror=, etc.)
• User reports of unexpected browser behavior or redirects when accessing event booking pages
• Detection of suspicious outbound connections from user browsers to unknown external domains

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block common XSS patterns in URL parameters and form inputs
• Monitor server access logs for requests containing common XSS payload signatures
• Deploy browser-based security monitoring to detect suspicious script execution patterns
• Configure intrusion detection systems with XSS-specific signature rules targeting the vulnerable plugin endpoints

Monitoring Recommendations

• Enable detailed logging for all requests to WordPress plugin endpoints, particularly those handling user input
• Set up alerts for requests containing special characters commonly used in XSS attacks (<, >, ", ', (, ))
• Monitor for anomalous JavaScript execution patterns or unexpected external resource loading on affected pages
• Review Content Security Policy violation reports if CSP headers are implemented

How to Mitigate CVE-2025-24560

Immediate Actions Required

• Update the Awesome Event Booking plugin to a patched version as soon as one becomes available from AwesomeTOGI
• Consider temporarily disabling the awesome-event-booking plugin until a security patch is released
• Implement a Web Application Firewall with XSS filtering capabilities to provide interim protection
• Educate users about the risks of clicking suspicious links, particularly those related to event booking functionality

Patch Information

Organizations using the Awesome Event Booking plugin should monitor the plugin developer (AwesomeTOGI) and the WordPress plugin repository for security updates. The vulnerability affects all versions through 2.7.1, and users should upgrade to any version released after the security fix is implemented. Additional details are available in the Patchstack Vulnerability Report.

Workarounds

• Implement Content Security Policy (CSP) headers to restrict script execution sources and mitigate the impact of XSS attacks
• Deploy a WAF rule to sanitize or block requests containing potential XSS payloads to endpoints used by the plugin
• Temporarily restrict access to event booking functionality to authenticated users only
• Consider using a virtual patching solution to add input validation at the web server level

# Example: Apache .htaccess CSP header configuration
<IfModule mod_headers.c>
    Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none';"
</IfModule>