CVE-2025-62294: Soplanning Auth Bypass Vulnerability

CVE-2025-62294 Overview

SOPlanning, an open-source planning and scheduling application, contains a critical vulnerability involving predictable generation of password recovery tokens. Due to a weak mechanism for generating recovery tokens, attackers can brute-force all possible token values and take over any user account within a reasonable amount of time. This vulnerability represents a significant authentication bypass risk that could lead to complete account compromise across SOPlanning installations.

Critical Impact

Attackers can exploit weak password recovery token generation to brute-force valid tokens and take over any user account, potentially gaining administrative access to the scheduling platform.

Affected Products

• SOPlanning versions prior to 1.55
• All SOPlanning installations using the vulnerable password recovery mechanism

Discovery Timeline

• November 20, 2025 - CVE-2025-62294 published to NVD
• November 24, 2025 - Last updated in NVD database

Technical Details for CVE-2025-62294

Vulnerability Analysis

This vulnerability is classified under CWE-340 (Generation of Predictable Numbers or Identifiers). The password recovery functionality in SOPlanning generates tokens using a weak or predictable algorithm, making it computationally feasible for attackers to enumerate all possible token values. When a user initiates a password reset, the system generates a recovery token that should be cryptographically random and unique. However, the flawed implementation allows attackers to predict or brute-force these tokens within a practical timeframe.

The network-accessible nature of this vulnerability means that remote attackers can exploit it without any prior authentication or user interaction. The primary impact is on confidentiality, as successful exploitation grants unauthorized access to user accounts.

Root Cause

The root cause lies in the use of an insecure random number generation mechanism for creating password recovery tokens. Instead of utilizing cryptographically secure pseudo-random number generators (CSPRNGs), the application likely relies on predictable sources of entropy or weak algorithms that produce tokens with insufficient randomness. This results in a limited token space that can be exhaustively searched through brute-force attacks.

Attack Vector

The attack is conducted over the network and requires no authentication or special privileges. An attacker would:

1. Trigger a password reset request for a target user account
2. Enumerate possible recovery token values based on the predictable generation pattern
3. Submit brute-force requests to the password reset endpoint with candidate tokens
4. Successfully authenticate once a valid token is discovered
5. Reset the victim's password and gain full account access

The vulnerability mechanism involves predictable token generation in the password recovery workflow. The weak entropy source used for token creation allows attackers to systematically guess valid tokens. For detailed technical analysis, refer to the CERT PL security advisory.

Detection Methods for CVE-2025-62294

Indicators of Compromise

• Unusually high volume of password reset requests targeting the same or multiple user accounts
• Multiple failed password reset token validation attempts from a single IP address or range
• Successful password resets followed by immediate account access from unexpected locations
• Automated or scripted requests to the password recovery endpoint showing sequential or patterned token attempts

Detection Strategies

• Monitor web server logs for repeated POST requests to password reset endpoints with varying token parameters
• Implement rate limiting detection to identify brute-force attempts against recovery token validation
• Configure alerting for multiple password reset requests for the same account within short time windows
• Analyze request patterns for automated enumeration characteristics such as consistent timing intervals

Monitoring Recommendations

• Enable detailed logging for all authentication and password recovery operations
• Deploy web application firewall (WAF) rules to detect and block token enumeration patterns
• Implement account lockout notifications to alert administrators of potential takeover attempts
• Monitor for successful logins from new geographic locations following password resets

How to Mitigate CVE-2025-62294

Immediate Actions Required

• Upgrade SOPlanning to version 1.55 or later immediately
• Audit recent password reset activity for signs of exploitation
• Force password resets for any accounts showing suspicious activity
• Review access logs for unauthorized account access following password resets

Patch Information

SOPlanning has addressed this vulnerability in version 1.55. The fix implements a cryptographically secure token generation mechanism that produces unpredictable recovery tokens. Organizations should prioritize upgrading to the patched version. Additional information about SOPlanning can be found on the official SOPlanning website.

Workarounds

• Implement rate limiting on password reset endpoints to slow brute-force attempts (e.g., maximum 3 requests per hour per account)
• Add CAPTCHA verification to the password reset request flow to prevent automated attacks
• Configure web application firewalls to block IPs exhibiting enumeration behavior
• Temporarily disable the password reset functionality if upgrading is not immediately possible

# Example rate limiting configuration for Apache
# Add to .htaccess or Apache configuration
<Location "/process/reset_password.php">
    SetEnvIf Request_URI "reset" rate_limit
    # Limit to 5 requests per minute per IP
    RewriteEngine On
    RewriteCond %{ENV:rate_limit} 1
    RewriteRule .* - [F,L]
</Location>