CVE-2026-14688 Overview
CVE-2026-14688 is a SQL injection vulnerability in itsourcecode Online Hotel Management System 1.0. The flaw resides in the /admin/login.php script, where the email parameter is passed unsanitized into a backend SQL query. Attackers can inject arbitrary SQL syntax through this parameter without prior authentication. The issue is classified under CWE-74 for improper neutralization of special elements in output used by a downstream component.
The vulnerability is remotely exploitable over the network, and a public proof-of-concept has been disclosed through VulDB and a related GitHub Issue Discussion.
Critical Impact
Unauthenticated attackers can inject SQL statements through the admin login form to bypass authentication, extract database contents, or manipulate hotel management records.
Affected Products
- itsourcecode Online Hotel Management System 1.0
- Component: /admin/login.php
- Vulnerable parameter: email
Discovery Timeline
- 2026-07-05 - CVE-2026-14688 published to NVD
- 2026-07-06 - Last updated in NVD database
Technical Details for CVE-2026-14688
Vulnerability Analysis
The vulnerability resides in the administrative login handler at /admin/login.php. The application receives the email parameter from user-controlled input and concatenates it into a SQL query without parameterization or escaping. This allows an attacker to break out of the intended string context and inject arbitrary SQL clauses.
Because the endpoint is the administrative login page, exploitation does not require prior authentication. An attacker can craft a request that manipulates the WHERE clause of the authentication query to return a truthy result, effectively bypassing login. The same injection point also enables UNION-based data extraction from the underlying database.
The attack surface includes any deployment of Online Hotel Management System 1.0 reachable over HTTP or HTTPS. Public availability of exploit details lowers the barrier to abuse.
Root Cause
The root cause is improper neutralization of special elements in a SQL command [CWE-74]. The email field from the login form is inserted directly into a query string without the use of prepared statements, parameter binding, or input validation. Any single quote, comment sequence, or SQL keyword supplied by the client is interpreted by the database engine as part of the query.
Attack Vector
The attack vector is remote and network-based. An attacker sends a crafted HTTP POST request to /admin/login.php with a malicious payload in the email field. Typical payloads use tautologies such as ' OR '1'='1'-- to bypass authentication, or UNION SELECT statements to enumerate tables like users, bookings, or admin. No user interaction is required.
The vulnerability manifests when the email POST parameter is concatenated into the login authentication query. Refer to the VulDB Vulnerability Detail for the disclosed exploit specifics.
Detection Methods for CVE-2026-14688
Indicators of Compromise
- HTTP POST requests to /admin/login.php containing SQL metacharacters such as ', --, #, /*, UNION, or SELECT in the email parameter.
- Repeated failed login attempts followed by an anomalous successful admin session from the same source IP.
- Web server or database error messages referencing SQL syntax originating from login.php.
- Unexpected outbound queries or large result sets returned by the hotel management database.
Detection Strategies
- Deploy web application firewall (WAF) signatures that match SQL injection patterns targeting the email parameter on the admin login endpoint.
- Enable database query logging and alert on queries containing tautological expressions or UNION SELECT originating from the application service account.
- Correlate web access logs with database audit logs to identify injection attempts that reach the backend.
Monitoring Recommendations
- Monitor /admin/login.php for abnormal request rates and payload sizes.
- Alert on HTTP 500 responses from the login handler, which frequently indicate SQL parsing errors during exploitation attempts.
- Track new admin session creations that occur without a preceding valid credential validation event.
How to Mitigate CVE-2026-14688
Immediate Actions Required
- Restrict network access to /admin/login.php by IP allowlist or VPN until a fix is applied.
- Deploy WAF rules to block SQL injection payloads targeting the email parameter.
- Review database and application logs for prior exploitation attempts against the admin login endpoint.
- Rotate administrative credentials and invalidate active sessions if compromise is suspected.
Patch Information
No vendor patch has been published at the time of writing. Consult the ITSourceCode Resource Hub and the VulDB CVE Report for updated remediation status. Until an official fix is released, operators should apply compensating controls and audit the /admin/login.php source to introduce parameterized queries.
Workarounds
- Replace concatenated SQL in /admin/login.php with prepared statements using PDO or mysqli parameter binding.
- Apply strict server-side input validation on the email parameter, rejecting characters outside a valid email character set.
- Enforce least-privilege database accounts so the application user cannot read or modify tables beyond what is required.
- Consider taking the application offline if it is internet-facing and business impact allows, until code-level remediation is complete.
# Example ModSecurity rule to block SQL injection payloads targeting the email parameter
SecRule ARGS:email "@rx (?i)(\bunion\b.*\bselect\b|--|\bor\b\s+\d+=\d+|')" \
"id:1026148801,phase:2,deny,status:403,\
msg:'CVE-2026-14688 SQLi attempt on /admin/login.php email parameter'"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
