CVE-2025-65415: docuFORM MPS Client Auth Bypass Flaw

CVE-2025-65415 Overview

CVE-2025-65415 is a session fixation vulnerability [CWE-384] in docuFORM Managed Print Service Client 11.11c. The flaw resides in the login page of the application. An attacker can supply a known session identifier to a victim before authentication. When the victim logs in, the application reuses the attacker-supplied session token instead of issuing a new one. The attacker then uses that token to impersonate the authenticated user.

Critical Impact
Successful exploitation allows an attacker to hijack an authenticated user's session by forcing the victim to use a pre-set session identifier, leading to unauthorized access to managed print service functions.

Affected Products

docuFORM Managed Print Service Client 11.11c

Discovery Timeline

2026-05-11 - CVE-2025-65415 published to NVD
2026-05-12 - Last updated in NVD database

Technical Details for CVE-2025-65415

Vulnerability Analysis

The vulnerability is a session fixation flaw classified under [CWE-384]. docuFORM Managed Print Service Client 11.11c does not regenerate the session identifier upon successful authentication at the login page. An attacker who can set or predict a session token before the victim logs in retains valid access to the victim's authenticated session.

Exploitation requires network access to the login interface and user interaction, since the victim must complete authentication using the attacker-influenced session identifier. The Exploit Prediction Scoring System (EPSS) probability is 0.029%, indicating low observed exploitation activity at this time.

No public proof-of-concept exploit is listed in the CVE record, and the vulnerability is not present on the CISA Known Exploited Vulnerabilities catalog.

Root Cause

The root cause is the failure to invalidate or rotate the session identifier when a user transitions from an unauthenticated to an authenticated state. Secure session management requires issuing a new session token at the moment of successful login. The login flow in docuFORM Managed Print Service Client 11.11c continues to honor the pre-authentication session ID, binding the new authenticated context to a token the attacker already controls.

Attack Vector

The attack typically proceeds in three steps. First, the attacker obtains a valid session identifier from the application or sets one through a crafted URL or cookie injection vector. Second, the attacker tricks the victim into using that session identifier, often through a phishing link pointing at the login page. Third, after the victim authenticates, the attacker reuses the now-privileged session token to access the application as the victim.

The vulnerability manifests during the login transaction. See the GitHub Gist by ZeroBreach for technical details published by the reporting researchers.

Detection Methods for CVE-2025-65415

Indicators of Compromise

Authentication events where the post-login session cookie matches a session identifier observed in pre-authentication traffic for the same client.
Login requests originating from URLs that contain explicit session identifiers in query strings or referrer headers.
Multiple distinct client IP addresses or user agents reusing the same session token within a short window.

Detection Strategies

Compare session identifiers issued before and after each successful login transaction. Flag sessions where the identifier remains unchanged across the authentication boundary.
Monitor web access logs for inbound links to the docuFORM login page that include session tokens as parameters.
Correlate authentication events with subsequent session activity to detect token reuse from anomalous geolocations or devices.

Monitoring Recommendations

Enable verbose authentication and session logging on the docuFORM Managed Print Service Client web tier.
Forward web server and application logs to a centralized analytics platform for cross-session correlation.
Alert on user accounts exhibiting concurrent sessions tied to a single session identifier across different source addresses.

How to Mitigate CVE-2025-65415

Immediate Actions Required

Contact docuFORM for vendor guidance and apply any available updates beyond version 11.11c.
Restrict access to the docuFORM Managed Print Service Client login interface to trusted networks or VPN users until a fix is deployed.
Educate users to avoid clicking authentication links received from untrusted sources, since the attack requires user interaction.

Patch Information

The CVE record does not list a vendor advisory or fixed version. Consult the Docuform Security Overview page and contact the vendor directly to confirm patch availability for docuFORM Managed Print Service Client 11.11c.

Workarounds

Deploy a reverse proxy or web application firewall that strips inbound session identifiers passed via URL parameters before they reach the login page.
Configure short session lifetimes and idle timeouts to limit the window in which a fixated session can be abused.
Force users to authenticate from a clean browser state, clearing cookies for the docuFORM domain before login.

bash

# Example reverse proxy rule to strip session tokens from query strings
# (NGINX) - adjust cookie/parameter names to match docuFORM deployment
location /login {
    if ($arg_JSESSIONID) { return 302 /login; }
    proxy_pass http://docuform-backend;
    proxy_set_header X-Forwarded-For $remote_addr;
}