CVE-2025-54236: Adobe Commerce Auth Bypass Vulnerability

CVE-2025-54236 Overview

CVE-2025-54236 is a critical Improper Input Validation vulnerability affecting Adobe Commerce, Adobe Commerce B2B, and Adobe Magento Open Source platforms. This vulnerability allows unauthenticated attackers to achieve session takeover through network-based attacks, resulting in high impact to both confidentiality and integrity of affected systems. The exploitation does not require any user interaction, making it particularly dangerous for internet-facing e-commerce installations.

Critical Impact

This vulnerability is actively being exploited in the wild and has been added to CISA's Known Exploited Vulnerabilities (KEV) catalog. Organizations running affected versions should prioritize immediate patching to prevent unauthorized session takeover attacks that could compromise customer data and administrative access.

Affected Products

• Adobe Commerce versions 2.4.4 through 2.4.9-alpha2 (including all patch releases)
• Adobe Commerce B2B versions 1.3.3 through 1.5.3-alpha2 (including all patch releases)
• Adobe Magento Open Source versions 2.4.5 through 2.4.9-alpha2 (including all patch releases)

Discovery Timeline

• September 9, 2025 - CVE-2025-54236 published to NVD
• March 9, 2026 - Last updated in NVD database

Technical Details for CVE-2025-54236

Vulnerability Analysis

This Improper Input Validation vulnerability (CWE-20) exists in the session handling mechanisms of Adobe Commerce and related products. The flaw allows attackers to manipulate input in a way that bypasses security controls, ultimately enabling session takeover without requiring authentication or user interaction.

The vulnerability is network-exploitable with low attack complexity, meaning that remote attackers can target vulnerable installations directly over the internet. Once exploited, an attacker can hijack legitimate user sessions, including administrative sessions, gaining unauthorized access to sensitive e-commerce data, customer information, and backend functionality.

The impact is particularly severe for e-commerce platforms as session takeover can lead to:

• Unauthorized access to customer payment and personal data
• Manipulation of orders, pricing, and inventory
• Administrative account compromise
• Potential for further lateral movement within the infrastructure

Root Cause

The root cause lies in insufficient input validation within the session management components of Adobe Commerce. The application fails to properly sanitize or validate user-supplied input before using it in session-related operations. This allows attackers to craft malicious requests that manipulate session state, ultimately leading to session takeover conditions.

The improper validation allows session identifiers or session-related parameters to be manipulated in ways the developers did not anticipate, bypassing the normal authentication flow and granting attackers access to existing authenticated sessions.

Attack Vector

The attack is conducted over the network without requiring any privileges or user interaction. An attacker sends specially crafted HTTP requests to the vulnerable Adobe Commerce installation. These requests contain malformed or manipulated input that exploits the improper input validation flaw.

The vulnerability has been documented by security researchers and details are available through the Null SecurityX technical analysis. Organizations should review the Adobe Security Advisory APSB25-88 for complete technical details and remediation guidance.

Detection Methods for CVE-2025-54236

Indicators of Compromise

• Unusual session creation patterns or rapid session ID changes in web server logs
• Authentication logs showing successful logins from unexpected IP addresses or geolocations
• Administrative actions performed from sessions with anomalous characteristics
• Web Application Firewall (WAF) alerts for malformed session-related parameters

Detection Strategies

• Monitor for suspicious HTTP requests targeting session management endpoints with unusual parameter values
• Implement anomaly detection for session behavior patterns, particularly sessions that suddenly change user context
• Review access logs for requests matching known exploitation patterns documented in security advisories
• Deploy SentinelOne Singularity platform to detect and respond to exploitation attempts targeting web application vulnerabilities

Monitoring Recommendations

• Enable detailed logging for all authentication and session-related events in Adobe Commerce
• Configure alerts for administrative session creation from previously unseen IP addresses
• Monitor for bulk session enumeration attempts or brute-force patterns against session endpoints
• Integrate web server and application logs with SIEM solutions for correlation analysis

How to Mitigate CVE-2025-54236

Immediate Actions Required

• Apply the latest security patches from Adobe immediately as this vulnerability is actively exploited
• Review recent session and authentication logs for signs of compromise
• Consider temporarily restricting administrative access to known IP addresses if patching is delayed
• Enable additional WAF rules to filter malicious requests targeting session handling endpoints

Patch Information

Adobe has released security updates to address this vulnerability as documented in Adobe Security Advisory APSB25-88. Organizations should update to the following minimum versions:

• Adobe Commerce: Update to versions newer than 2.4.9-alpha2, 2.4.8-p2, 2.4.7-p7, 2.4.6-p12, 2.4.5-p14, or 2.4.4-p15
• Adobe Commerce B2B: Update to versions newer than 1.5.3-alpha2, 1.5.2-p2, 1.4.2-p7, 1.3.4-p14, or 1.3.3-p15
• Adobe Magento Open Source: Update to versions newer than 2.4.9-alpha2, 2.4.8-p2, 2.4.7-p7, 2.4.6-p12, or 2.4.5-p14

Additional guidance is available in the Adobe Experience Cloud KB Article.

Workarounds

• Deploy a Web Application Firewall (WAF) with rules to block requests containing suspicious session-related parameters
• Implement rate limiting on session management and authentication endpoints
• Restrict administrative panel access to trusted IP ranges using network-level controls
• Enable additional session security settings such as session binding to IP address where supported

# Example: Restrict admin access via .htaccess (temporary mitigation)
<Directory "/var/www/html/magento/admin">
    Order Deny,Allow
    Deny from all
    Allow from 10.0.0.0/8
    Allow from 192.168.0.0/16
    # Add your trusted admin IP ranges
</Directory>