CVE-2025-11069: Westboy CicadasCMS XSS Vulnerability

CVE-2025-11069 Overview

CVE-2025-11069 is a cross-site scripting (XSS) vulnerability [CWE-79] in westboy CicadasCMS 1.0. The flaw resides in the Add Department Handler component at the /system/org/save endpoint. An attacker can inject malicious script content through the Name parameter. The manipulation triggers script execution in the browsers of users who view the affected data. The attack requires network access and authenticated privileges but can be executed remotely. Public disclosure of the exploit technique means opportunistic abuse is possible against exposed installations.

Critical Impact
Authenticated attackers can inject persistent JavaScript into the CicadasCMS department management interface, enabling session theft, credential harvesting, and unauthorized actions within the administrative context.

Affected Products

westboy CicadasCMS 1.0
Add Department Handler component (/system/org/save)
The Name request parameter

Discovery Timeline

2025-09-27 - CVE-2025-11069 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-11069

Vulnerability Analysis

The vulnerability is a stored cross-site scripting flaw in the department creation workflow of CicadasCMS 1.0. When an authenticated user submits a POST request to /system/org/save, the application accepts the Name parameter without adequate input validation or output encoding. The submitted value is persisted and later rendered in administrative views. Any HTML or JavaScript payload contained in Name executes in the context of users who load the affected pages. Because the payload is stored server-side, exploitation is repeatable and does not require additional user interaction beyond viewing the department list.

Root Cause

The root cause is missing sanitization and improper output encoding of user-controlled input in the Add Department Handler. The Name field is treated as trusted text when written to the underlying data store and rendered back to the browser. No contextual escaping is applied at the HTML sink, allowing arbitrary script tags and event handlers to survive the round trip.

Attack Vector

Exploitation requires network reachability to the CicadasCMS administrative interface and valid credentials with permission to create departments. An attacker submits a crafted Name value containing JavaScript. When an administrator or another authorized user browses the organization pages, the payload executes with their session privileges. Impact is limited to a single scripting context but includes session cookie theft, forced administrative actions, and phishing overlays. Full technical details of the payload are documented in the public GitHub CVE PoC Document.

No verified proof-of-concept code is reproduced here. See the linked advisory for payload specifics.

Detection Methods for CVE-2025-11069

Indicators of Compromise

POST requests to /system/org/save containing HTML tags, <script> fragments, or JavaScript event handlers within the Name parameter.
Department records in the CicadasCMS database whose name fields include angle brackets, javascript: URIs, or encoded script payloads.
Unexpected outbound requests from administrator browsers to attacker-controlled hosts following views of the organization module.

Detection Strategies

Inspect web server and application logs for POST traffic to /system/org/save and flag payloads containing script keywords or encoded HTML entities.
Deploy web application firewall rules that block XSS signatures targeting the Name parameter on the organization save endpoint.
Perform database content review of the department table to identify records containing HTML markup.

Monitoring Recommendations

Enable verbose HTTP request logging for the /system/org/* path and forward logs to a centralized analytics platform.
Alert on Content Security Policy violation reports originating from CicadasCMS administrative pages.
Monitor authenticated admin sessions for anomalous cookie access patterns or unexpected form submissions.

How to Mitigate CVE-2025-11069

Immediate Actions Required

Restrict access to the CicadasCMS administrative interface to trusted networks or VPN users only.
Review the existing department records and remove any entries containing HTML or script content.
Rotate administrator session credentials if signs of exploitation are found.
Enforce least-privilege access so only necessary accounts can invoke the Add Department Handler.

Patch Information

No vendor patch or fixed release has been published in the referenced advisories at the time of writing. Track the VulDB #326108 Advisory and the westboy project repository for future updates. Until a fix is available, apply the workarounds below and treat the deployment as exposed.

Workarounds

Deploy a web application firewall rule that rejects requests to /system/org/save when the Name parameter contains <, >, script, or javascript: tokens.
Configure a strict Content Security Policy that disallows inline scripts on CicadasCMS administrative pages to reduce payload execution.
Implement a reverse proxy that HTML-encodes reflected user input in responses returned from the organization module.
Consider taking the affected component offline until an official patch is released.

bash

# Example nginx rule to block script-like content in the Name parameter
location = /system/org/save {
    if ($request_method = POST) {
        if ($request_body ~* "(<script|javascript:|onerror=|onload=)") {
            return 403;
        }
    }
    proxy_pass http://cicadascms_backend;
}