CVE-2025-24707 Overview
CVE-2025-24707 is a Reflected Cross-Site Scripting (XSS) vulnerability affecting the GT3 Photo Gallery (gt3-photo-video-gallery) plugin for WordPress. The vulnerability stems 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.
Critical Impact
Attackers can exploit this reflected XSS vulnerability to steal session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or deliver malware through crafted URLs targeting WordPress administrators and site visitors.
Affected Products
- GT3 Photo Gallery (gt3-photo-video-gallery) plugin version 2.7.7.24 and earlier
- WordPress installations running vulnerable versions of the GT3 Photo Gallery plugin
- All WordPress sites utilizing the GT3 Image Gallery Gutenberg Block Gallery functionality
Discovery Timeline
- 2025-02-03 - CVE-2025-24707 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-24707
Vulnerability Analysis
This vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation), commonly known as Cross-Site Scripting. The GT3 Photo Gallery plugin fails to properly sanitize or encode user-controlled input before reflecting it back in the HTTP response. When a user clicks on a maliciously crafted link, the injected script executes within their browser session with the same privileges as the legitimate application.
The network-based attack vector requires user interaction, making it a reflected XSS variant rather than stored. However, the scope change indicates that the vulnerability can impact resources beyond the vulnerable component, potentially affecting the entire WordPress installation and associated user sessions.
Root Cause
The root cause lies in insufficient input validation and output encoding within the gt3-photo-video-gallery plugin. User-supplied parameters are reflected directly into HTML output without proper sanitization, allowing attackers to break out of the intended HTML context and inject arbitrary JavaScript code. The plugin fails to implement security measures such as HTML entity encoding, Content Security Policy headers, or input whitelisting that would prevent script injection.
Attack Vector
The attack leverages the network-accessible nature of WordPress plugins to target users through malicious URLs. An attacker crafts a specially designed link containing JavaScript payload and distributes it through phishing emails, social media, or compromised websites. When an authenticated WordPress administrator or site visitor clicks the link, the malicious script executes in their browser, potentially:
- Hijacking administrator sessions to gain full WordPress control
- Stealing sensitive information from the browser
- Redirecting users to phishing or malware distribution sites
- Performing unauthorized actions on behalf of the victim
The vulnerability affects all versions of the Photo Gallery plugin from initial release through version 2.7.7.24. For detailed technical information about the exploitation mechanism, refer to the PatchStack Vulnerability Report.
Detection Methods for CVE-2025-24707
Indicators of Compromise
- Suspicious URL patterns containing JavaScript payloads targeting the gt3-photo-video-gallery plugin endpoints
- Web server access logs showing requests with encoded script tags or event handlers in query parameters
- Browser console errors indicating blocked inline script execution (if CSP is partially configured)
- User reports of unexpected redirects or browser behavior after clicking gallery-related links
Detection Strategies
- Implement Web Application Firewall (WAF) rules to detect and block common XSS payloads in requests targeting WordPress plugin endpoints
- Configure intrusion detection systems to alert on URL patterns containing <script>, javascript:, onerror=, or other common XSS vectors
- Monitor WordPress admin activity logs for unauthorized configuration changes following suspicious user sessions
- Deploy browser-based XSS detection mechanisms through Content Security Policy violation reporting
Monitoring Recommendations
- Enable verbose logging for the gt3-photo-video-gallery plugin directory and associated HTTP requests
- Implement real-time alerting for HTTP requests containing common XSS payload signatures
- Monitor for unusual outbound connections from user browsers that may indicate successful exploitation
- Track WordPress plugin version inventories across all managed sites to identify vulnerable installations
How to Mitigate CVE-2025-24707
Immediate Actions Required
- Update the GT3 Photo Gallery plugin to the latest available version that addresses this vulnerability
- If an update is not immediately available, temporarily disable the gt3-photo-video-gallery plugin until a patch is released
- Review WordPress access logs for evidence of exploitation attempts targeting this vulnerability
- Implement Content Security Policy headers to mitigate the impact of potential XSS attacks
- Educate administrators and users about the risks of clicking untrusted links
Patch Information
Organizations should check the WordPress plugin repository for the latest version of GT3 Photo Gallery that addresses CVE-2025-24707. The vulnerability affects all versions through 2.7.7.24, so any version newer than this should be evaluated for the security fix. Consult the PatchStack Vulnerability Report for the latest patch status and remediation guidance.
Workarounds
- Disable the GT3 Photo Gallery plugin entirely until an official patch is available
- Implement strict Content Security Policy headers to prevent inline script execution
- Deploy a Web Application Firewall with XSS protection rules in front of affected WordPress installations
- Restrict access to WordPress admin areas using IP whitelisting or VPN requirements to reduce attack surface
# WordPress configuration - Add CSP headers via .htaccess
# Add to WordPress root .htaccess file
<IfModule mod_headers.c>
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline';"
Header set X-XSS-Protection "1; mode=block"
Header set X-Content-Type-Options "nosniff"
</IfModule>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
