CVE-2026-11342 Overview
CVE-2026-11342 is a SQL injection vulnerability in code-projects Hotel and Tourism Reservation System 1.0. The flaw resides in the /details.php endpoint, where the room argument is passed to a database query without proper sanitization. Attackers can manipulate the room parameter to inject arbitrary SQL statements and alter query logic.
The vulnerability is remotely exploitable and requires no authentication or user interaction. A public exploit disclosure increases the likelihood of opportunistic scanning and abuse. The weakness is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).
Critical Impact
Unauthenticated remote attackers can inject SQL through the room parameter in /details.php, exposing reservation data and potentially modifying database records.
Affected Products
- code-projects Hotel and Tourism Reservation System 1.0
- Deployments exposing /details.php to untrusted networks
- Downstream forks reusing the vulnerable room parameter handling
Discovery Timeline
- 2026-06-05 - CVE-2026-11342 published to NVD
- 2026-06-05 - Last updated in NVD database
Technical Details for CVE-2026-11342
Vulnerability Analysis
The vulnerability is a classic SQL injection in the details.php script of the Hotel and Tourism Reservation System. The application accepts the room request parameter and embeds it directly into a SQL query string used to look up room details. Because the input is not parameterized or sanitized, attackers can break out of the original query context.
Exploitation requires only an HTTP request to the affected endpoint with a crafted room value. No credentials, privileges, or user interaction are needed. According to VulDB, the exploit has been publicly disclosed, lowering the barrier to abuse.
The EPSS data published on 2026-06-11 indicates a low near-term exploitation probability, but public PoC availability means automated scanners can adopt the technique quickly.
Root Cause
The root cause is improper neutralization of user-supplied input before it is concatenated into a SQL statement. The application trusts the room query string parameter and passes it to the database driver without using prepared statements or input validation, satisfying the conditions described by [CWE-74].
Attack Vector
The attack vector is network-based and unauthenticated. An attacker issues an HTTP GET or POST request to /details.php with a malicious payload in the room parameter. Typical payloads append boolean conditions, UNION SELECT statements, or time-based delays to enumerate database schema and exfiltrate reservation data such as guest details, booking records, and credentials stored in the application database. Refer to the VulDB CVE-2026-11342 entry and the GitHub ht_sql Documentation for disclosed technical details.
Detection Methods for CVE-2026-11342
Indicators of Compromise
- HTTP requests to /details.php containing SQL metacharacters such as ', ", --, ;, or UNION in the room parameter
- Repeated requests to /details.php from a single source IP with varying room values consistent with payload fuzzing
- Web server or database error messages referencing SQL syntax errors triggered by the room parameter
- Unexpected SELECT, INFORMATION_SCHEMA, or SLEEP() queries in MySQL/MariaDB logs originating from the application user
Detection Strategies
- Deploy web application firewall (WAF) rules that flag SQL injection signatures targeting the room parameter of /details.php
- Enable database query logging and alert on queries that include union-based or boolean-based injection patterns
- Correlate web access logs with database error logs to identify reconnaissance against the reservation system
Monitoring Recommendations
- Monitor outbound data volume from the database host for signs of bulk extraction
- Track authentication anomalies on administrative accounts that may follow successful database compromise
- Review backup and audit trails for unauthorized changes to reservation, user, or pricing tables
How to Mitigate CVE-2026-11342
Immediate Actions Required
- Restrict public access to /details.php using IP allowlists or authentication until a fix is in place
- Deploy WAF signatures that block SQL injection payloads targeting the room parameter
- Audit database accounts used by the application and remove unnecessary privileges such as FILE or SUPER
- Review recent web and database logs for evidence of exploitation against /details.php
Patch Information
No vendor patch has been published for code-projects Hotel and Tourism Reservation System 1.0 at the time of CVE publication. Operators should track updates on the Code Projects Resource Hub and the VulDB Vulnerability #368883 entry. Until an official fix is released, apply compensating controls and consider taking the application offline if it processes sensitive guest data.
Workarounds
- Replace inline SQL concatenation in details.php with parameterized queries or prepared statements using PDO or MySQLi
- Enforce strict server-side input validation that restricts the room parameter to expected numeric or alphanumeric values
- Run the database under a least-privilege account that cannot read system tables or write to the filesystem
- Place the application behind a reverse proxy that normalizes and inspects query parameters before they reach PHP
# Example ModSecurity rule to block SQL metacharacters in the room parameter
SecRule ARGS:room "@rx (?i)(\b(union|select|sleep|benchmark|information_schema)\b|--|;|')" \
"id:1026113420,phase:2,deny,status:403,log,msg:'CVE-2026-11342 SQLi attempt on /details.php room parameter'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
