CVE-2025-11954: WISECP Cross-Site Request Forgery (CSRF)

CVE-2025-11954 Overview

CVE-2025-11954 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] affecting WISECP, a client and billing management platform developed by Sitemio Information Technologies Trade Ltd. Co. The flaw impacts all WISECP versions through 20022026 and allows attackers to trick authenticated users into executing unwanted actions on the application.

The vendor was contacted regarding this disclosure but did not respond. No vendor patch is currently confirmed.

Critical Impact

Successful exploitation enables attackers to perform state-changing actions on behalf of authenticated WISECP users, including administrators, with high impact on confidentiality, integrity, and availability.

Affected Products

• Sitemio WISECP (all versions through 20022026)
• Hosting and billing deployments using vulnerable WISECP releases
• Customer-facing portals built on affected WISECP instances

Discovery Timeline

• 2026-05-20 - CVE-2025-11954 published to NVD
• 2026-05-20 - Last updated in NVD database

Technical Details for CVE-2025-11954

Vulnerability Analysis

The vulnerability stems from missing or insufficient anti-CSRF protections in WISECP request handlers. An attacker can craft a malicious page or link that triggers authenticated requests against a victim's WISECP session. Because the application does not adequately verify request origin or token authenticity, the forged request executes with the victim's privileges.

The attack requires user interaction, such as clicking a crafted link or visiting an attacker-controlled page while logged into WISECP. When the victim holds administrative privileges, the impact extends to configuration changes, account manipulation, and data exposure across the hosting platform.

Root Cause

The root cause is the absence of synchronizer tokens, double-submit cookies, or equivalent origin validation on state-changing endpoints. WISECP relies on session cookies that the browser automatically attaches to cross-origin requests, allowing forged submissions to be processed as legitimate.

Attack Vector

The attack vector is network-based and requires the victim to be authenticated to WISECP. The attacker hosts crafted HTML containing auto-submitting forms or hidden image requests targeting sensitive WISECP endpoints. No verified public exploit code is available. See the Siber Güvenlik Notification TR-26-0262 advisory for additional technical context.

Detection Methods for CVE-2025-11954

Indicators of Compromise

• Unexpected administrative actions in WISECP audit logs that correlate with normal user browsing sessions
• HTTP Referer or Origin headers in WISECP access logs pointing to untrusted external domains
• Configuration or user account changes lacking corresponding interactive admin login events

Detection Strategies

• Inspect web server logs for state-changing requests (POST, PUT, DELETE) lacking expected Origin or Referer headers tied to the WISECP domain
• Correlate session activity timelines with administrative changes to identify out-of-band actions
• Deploy a Web Application Firewall (WAF) rule set that flags cross-origin POSTs to WISECP endpoints

Monitoring Recommendations

• Enable verbose audit logging for all privileged WISECP operations and forward to a central SIEM
• Alert on administrative configuration changes occurring outside known maintenance windows
• Monitor for phishing campaigns or suspicious links targeting WISECP administrators and staff accounts

How to Mitigate CVE-2025-11954

Immediate Actions Required

• Restrict WISECP administrative interfaces to trusted IP ranges or VPN-only access
• Require administrators to use isolated browser profiles when managing WISECP
• Reduce session lifetimes and enforce re-authentication for sensitive operations
• Educate staff to avoid clicking untrusted links while logged into the WISECP console

Patch Information

No vendor patch has been confirmed at the time of publication. The vendor did not respond to the disclosure. Monitor the Siber Güvenlik Notification TR-26-0262 for updates and contact Sitemio directly to request a fixed build.

Workarounds

• Deploy a reverse proxy or WAF that enforces Origin and Referer header validation on WISECP state-changing requests
• Configure the session cookie with SameSite=Strict or SameSite=Lax to limit cross-site submission
• Block third-party cookies in browsers used by WISECP administrators
• Segregate WISECP administrative browsing from general web activity using a dedicated workstation or browser profile

# Example NGINX reverse proxy rule enforcing same-origin for state-changing requests
map $request_method $is_state_changing {
    default 0;
    POST    1;
    PUT     1;
    DELETE  1;
    PATCH   1;
}

server {
    listen 443 ssl;
    server_name wisecp.example.com;

    location / {
        if ($is_state_changing = 1) {
            set $bad_origin 1;
        }
        if ($http_origin ~* ^https://wisecp\.example\.com$) {
            set $bad_origin 0;
        }
        if ($bad_origin = 1) {
            return 403;
        }
        proxy_pass http://wisecp_backend;
    }
}