CVE-2026-13552 Overview
CVE-2026-13552 is a SQL injection vulnerability affecting itsourcecode Online Hotel Management System version 1.0. The flaw exists in the /admin/mod_amenities/controller.php?action=edit endpoint, where the amen_id parameter is passed directly into a database query without proper sanitization. Attackers can manipulate this parameter over the network without authentication to execute arbitrary SQL statements. A public exploit for this issue has been disclosed, increasing exposure for organizations running vulnerable installations. The vulnerability is tracked under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).
Critical Impact
Remote, unauthenticated attackers can inject arbitrary SQL through the amen_id parameter, potentially exposing or modifying data stored in the hotel management database.
Affected Products
- itsourcecode Online Hotel Management System 1.0
- Deployments exposing /admin/mod_amenities/controller.php
- Any derivative build reusing the vulnerable amenities module
Discovery Timeline
- 2026-06-29 - CVE-2026-13552 published to NVD
- 2026-06-29 - Last updated in NVD database
Technical Details for CVE-2026-13552
Vulnerability Analysis
The vulnerability resides in the amenities administration controller of the Online Hotel Management System. When an administrator or any remote actor invokes the edit action on /admin/mod_amenities/controller.php, the application reads the amen_id request parameter and concatenates it into a SQL statement. Because the input is not parameterized or escaped, an attacker can break out of the intended query context and append additional SQL clauses.
Exploitation does not require authentication, user interaction, or elevated privileges based on the disclosed attack path. A public proof of concept has been referenced through VulDB CVE-2026-13552 and the GitHub CVE Discussion, which lowers the barrier for opportunistic attackers to weaponize the flaw.
Root Cause
The root cause is the direct use of untrusted request input inside a SQL query. The amen_id value flows from the HTTP request into the query string without prepared statements or input validation, matching the pattern described in [CWE-74]. Any character sequence supplied in amen_id is interpreted by the database engine as part of the query.
Attack Vector
The attack vector is network-based. An attacker sends a crafted HTTP request to the vulnerable endpoint with a malicious value in the amen_id parameter. Payloads can include boolean-based, union-based, or time-based SQL injection techniques to enumerate database contents, extract credentials, or modify records.
No verified exploit code is republished here. Refer to the VulDB Submission Report and VulDB Vulnerability #374560 for technical detail on the disclosed payload structure.
Detection Methods for CVE-2026-13552
Indicators of Compromise
- HTTP requests to /admin/mod_amenities/controller.php?action=edit containing SQL metacharacters such as ', --, UNION, SLEEP(, or OR 1=1 in the amen_id parameter.
- Unusual database errors or extended query execution times generated by the hotel management application.
- Unexpected read or write operations against amenities, users, or reservation tables originating from the web application service account.
Detection Strategies
- Inspect web server access logs for anomalous values in the amen_id query string parameter, particularly non-numeric input.
- Deploy Web Application Firewall (WAF) rules that flag SQL injection signatures targeting the /admin/mod_amenities/ path.
- Correlate application logs with database audit logs to identify queries that deviate from the expected parameterized shape.
Monitoring Recommendations
- Enable verbose query logging on the backend database during the exposure window and alert on syntax errors from the web application user.
- Monitor egress traffic from the web server for signs of data exfiltration following suspicious requests to the amenities controller.
- Track authentication and privilege changes in the application database that occur outside routine administrative windows.
How to Mitigate CVE-2026-13552
Immediate Actions Required
- Restrict network access to the /admin/ path so it is reachable only from trusted management networks or via VPN.
- Deploy WAF signatures that block SQL injection payloads targeting the amen_id parameter until a code-level fix is applied.
- Review recent access logs for the vulnerable endpoint and investigate any request containing non-integer amen_id values.
Patch Information
No official vendor patch has been published in the referenced advisories at the time of disclosure. Organizations should monitor itsourcecode for an updated release of the Online Hotel Management System and apply source-level fixes that replace string concatenation with parameterized queries or prepared statements for the amen_id parameter.
Workarounds
- Modify controller.php to cast amen_id to an integer before use, for example using intval($_REQUEST['amen_id']) in PHP, and use prepared statements (PDO or mysqli) for the underlying query.
- Enforce administrative authentication on all files under /admin/mod_amenities/ if the current deployment permits unauthenticated access.
- Apply least-privilege database accounts so the web application cannot alter schema objects or read sensitive tables outside its operational scope.
# Example Apache configuration restricting admin access by source IP
<Location "/admin/">
Require ip 10.0.0.0/24
Require ip 192.168.10.0/24
</Location>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
