CVE-2025-70363: eZ Platform Information Disclosure Flaw

CVE-2025-70363 Overview

CVE-2025-70363 is a Broken Access Control vulnerability affecting the REST API of Ibexa & Ciril GROUP eZ Platform / Ciril Platform 2.x. The vulnerability allows unauthenticated attackers to access sensitive data by enumerating object IDs through the platform's REST API endpoints. This flaw stems from improper access control mechanisms (CWE-284) that fail to validate user authentication before returning protected resources.

Critical Impact

Unauthenticated remote attackers can enumerate object IDs to access sensitive data stored within the platform, potentially exposing confidential business information, user data, or system configurations without requiring any credentials.

Affected Products

• Ibexa eZ Platform 2.x
• Ciril GROUP Ciril Platform 2.x

Discovery Timeline

• 2026-03-06 - CVE CVE-2025-70363 published to NVD
• 2026-03-09 - Last updated in NVD database

Technical Details for CVE-2025-70363

Vulnerability Analysis

This vulnerability is classified as Improper Access Control (CWE-284), which occurs when the REST API fails to properly restrict access to resources based on authentication status. The affected platforms expose API endpoints that allow direct object reference without verifying that the requesting user has appropriate authorization to access the requested data.

The network-accessible nature of this vulnerability means attackers can exploit it remotely without any prior authentication or user interaction. The attack complexity is low, making it easily exploitable by threat actors with minimal technical sophistication. While the vulnerability only impacts data confidentiality (not integrity or availability), the potential for sensitive data exposure makes this a significant security concern.

Root Cause

The root cause of CVE-2025-70363 lies in the REST API's failure to implement proper authentication and authorization checks before returning requested objects. The API accepts object ID parameters and returns the corresponding data without validating whether the requester has legitimate access rights. This design flaw allows attackers to systematically enumerate object IDs and retrieve data that should be protected.

Attack Vector

The attack vector for this vulnerability is network-based, allowing remote exploitation. Attackers can craft HTTP requests to the vulnerable REST API endpoints, iterating through predictable or sequential object IDs to discover and exfiltrate sensitive information. The attack requires no privileges, no user interaction, and can be automated using simple scripting tools to enumerate large numbers of objects efficiently.

Since no verified code examples are available for this vulnerability, the exploitation mechanism involves making unauthenticated HTTP requests to the REST API with various object ID values. Attackers typically use automated tools to iterate through numeric or predictable ID sequences, collecting any data returned by the API. Additional technical details may be found in the GitHub Gist Analysis.

Detection Methods for CVE-2025-70363

Indicators of Compromise

• Unusual volume of REST API requests from single IP addresses, particularly targeting object retrieval endpoints
• Sequential or patterned object ID requests indicating automated enumeration attempts
• API access logs showing requests for objects that should not be accessible to unauthenticated users
• Unexpected data access patterns during non-business hours from external IP ranges

Detection Strategies

• Implement API request rate limiting and monitor for threshold violations
• Deploy Web Application Firewall (WAF) rules to detect and block object ID enumeration patterns
• Enable detailed logging on REST API endpoints to capture all access attempts and their authentication status
• Use anomaly detection to identify unusual patterns in API access behavior

Monitoring Recommendations

• Monitor REST API access logs for unauthenticated requests to protected endpoints
• Set up alerts for rapid sequential requests targeting object retrieval APIs
• Track failed and successful API requests by source IP to identify potential reconnaissance activity
• Review API access patterns regularly to detect data exfiltration attempts

How to Mitigate CVE-2025-70363

Immediate Actions Required

• Implement proper authentication requirements on all REST API endpoints
• Add authorization checks to verify requesting users have permission to access requested objects
• Enable rate limiting on API endpoints to slow enumeration attempts
• Review API access logs for signs of prior exploitation

Patch Information

No vendor patches have been officially announced at this time. Organizations should monitor Ibexa Security Information and EZ Security Resource for official security advisories and patch releases. The GitHub Gist Analysis may contain additional technical details regarding the vulnerability.

Workarounds

• Implement authentication middleware to require valid credentials for all REST API requests
• Add authorization logic to verify object access permissions before returning data
• Deploy a Web Application Firewall with rules to detect and block enumeration patterns
• Consider restricting API access to trusted IP ranges or VPN-connected users until a patch is available

# Example: Restrict API access via web server configuration (Apache)
# Add to .htaccess or virtual host configuration
<Location /api/ezp/v2>
    Require valid-user
    AuthType Basic
    AuthName "API Access"
    AuthUserFile /etc/apache2/.htpasswd
</Location>