CVE-2025-3317: Fumiao Opencms Path Traversal Vulnerability

CVE-2025-3317 Overview

CVE-2025-3317 is a path traversal vulnerability [CWE-22] in fumiao opencms affecting the opencms-dev/src/main/webapp/view/admin/document/dataPage.jsp component. Attackers can manipulate the path argument to traverse the file system beyond the intended directory. The flaw is exploitable remotely and requires low-privilege authentication. Because opencms uses a rolling release model, no fixed version identifiers are provided by the vendor. The exploit has been publicly disclosed, raising the likelihood of opportunistic attempts against exposed installations.

Critical Impact
Authenticated remote attackers can read files outside the intended directory scope by injecting traversal sequences into the path parameter of dataPage.jsp.

Affected Products

fumiao opencms (rolling release up to commit a0fafa5cff58719e9b27c2a2eec204cc165ce14f)
Component: opencms-dev/src/main/webapp/view/admin/document/dataPage.jsp
Deployments exposing the admin document interface to network clients

Discovery Timeline

2025-04-06 - CVE-2025-3317 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-3317

Vulnerability Analysis

The vulnerability resides in the administrative document viewer dataPage.jsp. The JSP accepts a path request parameter and uses it to resolve a file on the server without sufficient normalization or containment checks. Supplying traversal sequences such as ../ allows the attacker to escape the intended base directory and reference arbitrary files reachable by the servlet container process. The impact is limited to confidentiality according to the CVSS vector, meaning integrity and availability are not directly affected. Exploitation requires network access and a low-privilege authenticated session on the application.

Root Cause

The root cause is insufficient validation and canonicalization of user-supplied path input [CWE-22]. The application concatenates the path parameter into a file system lookup without enforcing that the resolved path remains within the permitted directory. Consult the Gitee issue tracker entry for maintainer discussion of the report.

Attack Vector

An authenticated attacker sends a crafted HTTP request to dataPage.jsp with a path parameter containing directory traversal sequences. The servlet resolves the manipulated path and returns file contents that reside outside the intended document root, potentially including configuration files, credentials, or source code. Additional context is available in the VulDB entry #303516.

Detection Methods for CVE-2025-3317

Indicators of Compromise

HTTP requests to dataPage.jsp containing ../, ..\, URL-encoded (%2e%2e%2f) or double-encoded traversal sequences in the path parameter
Access log entries showing the path parameter referencing sensitive files such as WEB-INF/web.xml, /etc/passwd, or application configuration files
Unexpected file read activity by the servlet container user account

Detection Strategies

Inspect web server and application logs for requests to opencms-dev/src/main/webapp/view/admin/document/dataPage.jsp with suspicious path values
Deploy web application firewall rules that flag traversal patterns targeting JSP endpoints
Correlate authenticated admin sessions with anomalous file access patterns on the underlying host

Monitoring Recommendations

Enable verbose access logging on the opencms admin path and forward logs to centralized analytics
Alert on repeated 200 responses to dataPage.jsp requests containing encoded traversal metacharacters
Monitor file integrity and process file-open telemetry for the servlet container user

How to Mitigate CVE-2025-3317

Immediate Actions Required

Restrict network access to the opencms administrative interface to trusted management networks or VPN only
Rotate credentials for any low-privilege accounts that could be used to reach dataPage.jsp
Review web server access logs for prior exploitation attempts referencing the path parameter

Patch Information

The vendor distributes opencms as a rolling release, and no versioned fix is published in the CVE data. Track the Gitee issue tracker for IBLJLM for maintainer updates and pull upstream commits that add path canonicalization to dataPage.jsp.

Workarounds

Block requests to dataPage.jsp at a reverse proxy or WAF when the path parameter contains .., %2e%2e, or absolute path prefixes
Apply a servlet filter that canonicalizes the path parameter and rejects values resolving outside the intended document directory
Run the servlet container under a least-privilege OS account with file system access limited to the required document store

bash

# Example nginx rule to block traversal patterns targeting dataPage.jsp
location ~* /view/admin/document/dataPage\.jsp$ {
    if ($args ~* "(\.\./|\.\.\\|%2e%2e|%252e%252e)") {
        return 403;
    }
    proxy_pass http://opencms_backend;
}