CVE-2025-23748: Awesome Gallery Reflected XSS Vulnerability

CVE-2025-23748 Overview

CVE-2025-23748 is a Reflected Cross-Site Scripting (XSS) vulnerability in the Singsys Awesome Gallery WordPress plugin. The vulnerability arises from improper neutralization of user-supplied input during web page generation, allowing attackers to inject malicious scripts that execute in the context of a victim's browser session.

This vulnerability affects WordPress websites using the Singsys Awesome Gallery plugin (awesome-gallery-singsys) through version 1.0. Reflected XSS attacks require user interaction, typically through a crafted malicious link, but can lead to session hijacking, credential theft, and unauthorized actions performed on behalf of authenticated users.

Critical Impact

Attackers can execute arbitrary JavaScript code in victim browsers, potentially stealing session cookies, credentials, or performing actions as authenticated WordPress administrators.

Affected Products

• Singsys Awesome Gallery WordPress Plugin version 1.0 and earlier
• WordPress installations utilizing the awesome-gallery-singsys plugin

Discovery Timeline

• 2025-02-14 - CVE-2025-23748 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-23748

Vulnerability Analysis

This vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation), commonly known as Cross-Site Scripting. The Singsys Awesome Gallery plugin fails to properly sanitize or encode user-controlled input before reflecting it back in the HTTP response. When a victim clicks on a specially crafted URL containing malicious JavaScript, the payload is executed within their browser session on the vulnerable WordPress site.

Reflected XSS vulnerabilities in WordPress plugins are particularly dangerous because they can target site administrators. A successful attack could allow an attacker to create new admin accounts, modify site content, install malicious plugins, or exfiltrate sensitive configuration data.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and output encoding within the Singsys Awesome Gallery plugin. User-supplied data is directly reflected in the HTML response without being passed through WordPress's built-in sanitization functions such as esc_html(), esc_attr(), or wp_kses(). This allows specially crafted input containing JavaScript code to be interpreted and executed by the victim's browser.

Attack Vector

The attack vector for CVE-2025-23748 requires social engineering to deliver a malicious URL to a victim. An attacker would craft a URL containing JavaScript payload in a vulnerable parameter, then distribute this link through phishing emails, social media, or by embedding it in compromised websites. When the victim clicks the link and visits the vulnerable WordPress page, the malicious script executes in their browser with full access to the page's Document Object Model (DOM) and any associated session data.

The vulnerability can be exploited through a crafted URL containing a JavaScript payload in an improperly sanitized parameter. When a victim visits this malicious link, the script executes within their browser session. For detailed technical information, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-23748

Indicators of Compromise

• Unusual URL patterns in web server logs containing encoded JavaScript or HTML tags in query parameters
• Unexpected HTTP requests to the WordPress site with <script> tags or JavaScript event handlers in URL parameters
• Reports from users about suspicious links or unexpected browser behavior after visiting gallery pages
• Anomalous session activity following visits to gallery plugin endpoints

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block reflected XSS patterns in incoming requests
• Monitor web server access logs for requests containing common XSS payloads such as <script>, javascript:, or encoded variants
• Deploy browser-based Content Security Policy (CSP) headers to prevent inline script execution
• Utilize WordPress security plugins that scan for vulnerable plugin versions

Monitoring Recommendations

• Enable detailed logging for all HTTP requests to WordPress, particularly those accessing gallery functionality
• Configure alerting for suspicious URL patterns indicative of XSS exploitation attempts
• Regularly audit installed WordPress plugins against vulnerability databases like Patchstack
• Monitor browser console errors and CSP violation reports that may indicate attempted XSS attacks

How to Mitigate CVE-2025-23748

Immediate Actions Required

• Audit your WordPress installation to determine if the Singsys Awesome Gallery plugin (awesome-gallery-singsys) is installed
• If the plugin is installed, consider immediately deactivating and removing it until a patched version is available
• Review web server logs for any evidence of exploitation attempts targeting gallery endpoints
• Implement a Web Application Firewall with XSS protection rules as a compensating control

Patch Information

At the time of this advisory, no patched version has been confirmed for the Singsys Awesome Gallery plugin. Users should monitor the Patchstack Vulnerability Report for updates regarding vendor remediation.

Workarounds

• Deactivate and remove the Singsys Awesome Gallery plugin until a security patch is released
• Implement Content Security Policy (CSP) headers with strict script-src directives to mitigate XSS impact
• Deploy a Web Application Firewall (WAF) configured to block common XSS patterns
• Consider migrating to an alternative, actively maintained gallery plugin with a stronger security track record

# Example: Add Content Security Policy header in Apache .htaccess
# This helps mitigate XSS by restricting script sources
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none';"