CVE-2025-52786 Overview
CVE-2025-52786 is a reflected Cross-Site Scripting (XSS) vulnerability in the Kingdom Creation Media Folder plugin for WordPress. The flaw affects all versions of the media-folder plugin up to and including 1.0.0. The vulnerability is classified under CWE-79, Improper Neutralization of Input During Web Page Generation. Attackers can inject malicious scripts that execute in a victim's browser when the victim clicks a crafted link. Successful exploitation requires user interaction but no authentication, and the scope change in the CVSS vector indicates impact beyond the vulnerable component.
Critical Impact
Attackers can execute arbitrary JavaScript in administrator browser sessions, enabling session hijacking, credential theft, and unauthorized actions within the WordPress site.
Affected Products
- Kingdom Creation Media Folder plugin for WordPress
- All versions through and including 1.0.0
- WordPress sites with the media-folder plugin installed and active
Discovery Timeline
- 2025-07-16 - CVE-2025-52786 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-52786
Vulnerability Analysis
The Media Folder plugin fails to properly neutralize user-supplied input before reflecting it back into rendered HTML output. This allows an attacker to craft a URL containing JavaScript payloads that the application returns within the response page. When a victim follows the crafted link, the browser executes the injected script in the context of the WordPress site origin. The CVSS scope change indicates that the executed script can affect resources beyond the immediate plugin context, including session cookies and DOM elements of the parent WordPress application. Because the attack vector is network-based and requires no privileges, any unauthenticated attacker can attempt exploitation against any user who visits a malicious link.
Root Cause
The root cause is missing or insufficient output encoding on request parameters that the plugin echoes into HTML responses. The plugin neither sanitizes input on receipt nor escapes data when rendering it, which violates secure WordPress development practices that mandate use of functions such as esc_html(), esc_attr(), and wp_kses() for any reflected user input.
Attack Vector
An attacker constructs a URL containing a malicious JavaScript payload in a vulnerable parameter handled by the media-folder plugin. The attacker delivers this URL through phishing email, social media, or compromised third-party content. When an authenticated WordPress user, especially an administrator, clicks the link, their browser renders the response and executes the injected script. The script runs with the user's session privileges and can perform actions such as creating new admin accounts, exfiltrating nonce tokens, or modifying site content. See the Patchstack WordPress Vulnerability Analysis for additional technical context.
Detection Methods for CVE-2025-52786
Indicators of Compromise
- HTTP requests to media-folder plugin endpoints containing URL-encoded <script> tags, javascript: URIs, or event handlers such as onerror= and onload=.
- Unexpected outbound requests from administrator browsers to attacker-controlled domains shortly after clicking external links.
- Creation of unfamiliar WordPress administrator accounts or modification of user roles without corresponding audit trail.
- Web server access logs showing referrer headers from suspicious external sources targeting plugin URLs.
Detection Strategies
- Inspect web server and WAF logs for query string parameters containing HTML or JavaScript syntax targeting media-folder URLs.
- Monitor WordPress audit logs for administrative actions performed immediately after page navigations involving the vulnerable plugin.
- Deploy Content Security Policy (CSP) reporting endpoints to capture inline script execution attempts blocked by browser policy.
Monitoring Recommendations
- Enable verbose logging on the WordPress site and forward logs to a centralized SIEM for correlation with user agent and referrer fields.
- Alert on requests containing encoded XSS patterns such as %3Cscript%3E, %3Cimg, or onerror%3D targeting plugin paths.
- Track plugin file integrity and review installed plugin versions across managed WordPress instances.
How to Mitigate CVE-2025-52786
Immediate Actions Required
- Deactivate and remove the media-folder plugin until a patched version becomes available, since no fixed version is currently published.
- Audit WordPress administrator and editor accounts for unauthorized additions or privilege changes.
- Force a password reset and invalidate active sessions for all privileged WordPress users.
- Review web server access logs for prior exploitation attempts using XSS payloads against plugin endpoints.
Patch Information
No official patch is currently listed in the available advisory data. The vulnerability affects Media Folder versions up to and including 1.0.0. Administrators should monitor the Patchstack advisory and the WordPress plugin repository for updates from the vendor.
Workarounds
- Block requests containing XSS payload patterns at the Web Application Firewall (WAF) layer for paths associated with the media-folder plugin.
- Implement a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins.
- Restrict access to the WordPress administrative interface by IP allowlist or VPN to reduce exposure of privileged sessions.
- Educate administrative users to avoid clicking unsolicited links that reference their WordPress site domain.
# Example WAF rule (ModSecurity) to block reflected XSS payloads targeting media-folder
SecRule REQUEST_URI "@contains /wp-content/plugins/media-folder/" \
"chain,phase:2,deny,status:403,id:1005278,msg:'Block XSS attempt on media-folder plugin'"
SecRule ARGS "@rx (?i)(<script|javascript:|onerror=|onload=)" "t:urlDecodeUni,t:htmlEntityDecode"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
