CVE-2026-15675: Online Job Portal 1.0 SQLi Vulnerability

CVE-2026-15675 Overview

CVE-2026-15675 is a SQL injection vulnerability in code-projects Online Job Portal 1.0. The flaw resides in the /Admin/EditUser.php script, where the UserId parameter is passed to a database query without proper sanitization. Attackers can manipulate this parameter to inject arbitrary SQL statements and interact directly with the backend database.

The vulnerability is remotely exploitable over the network and requires no authentication or user interaction. A public exploit has been disclosed, increasing the likelihood of opportunistic scanning and abuse. The issue is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component.

Critical Impact
Unauthenticated remote attackers can inject arbitrary SQL through the UserId parameter in /Admin/EditUser.php, potentially exposing or modifying user records in the Online Job Portal database.

Affected Products

code-projects Online Job Portal 1.0
The vulnerable component is /Admin/EditUser.php
The vulnerable parameter is UserId

Discovery Timeline

2026-07-14 - CVE-2026-15675 published to the National Vulnerability Database (NVD)
2026-07-14 - Last updated in NVD database

Technical Details for CVE-2026-15675

Vulnerability Analysis

The vulnerability exists in the administrative user-editing workflow of code-projects Online Job Portal 1.0. The EditUser.php script accepts a UserId request parameter and incorporates it into a SQL query without parameterization or input validation. Because the value is concatenated directly into the query string, attackers can break out of the intended query context and append their own SQL syntax.

Successful exploitation allows attackers to read arbitrary database contents, modify user records, or escalate to administrative access by tampering with authentication data. Depending on database privileges, follow-on impacts may include file read/write on the database host. The exploit is publicly available, lowering the barrier to abuse.

See the VulDB CVE-2026-15675 entry and the GitHub Issue Discussion for additional technical context.

Root Cause

The root cause is improper neutralization of special characters in the UserId parameter before it is used in a SQL statement. The application does not apply prepared statements, parameterized queries, or input validation. Any single quote, comment sequence, or SQL keyword supplied by the client is interpreted as part of the query.

Attack Vector

Exploitation is performed remotely over HTTP against the /Admin/EditUser.php endpoint. An attacker crafts a request containing a malicious UserId value with embedded SQL syntax. Because the endpoint is administrative but reachable without authentication in the vulnerable build, no credentials are required to trigger the injection.

The vulnerability manifests when the crafted UserId is concatenated into the SQL query executed by the PHP handler. Refer to the VulDB Vulnerability #378165 record for the public proof-of-concept details.

Detection Methods for CVE-2026-15675

Indicators of Compromise

HTTP requests to /Admin/EditUser.php containing SQL metacharacters in the UserId parameter, such as single quotes, UNION SELECT, OR 1=1, or SQL comment sequences (--, #, /*).
Web server or PHP error logs showing database syntax errors originating from EditUser.php.
Unexpected changes to administrative user accounts, password hashes, or role fields in the Online Job Portal database.

Detection Strategies

Deploy web application firewall (WAF) signatures that flag SQL injection patterns targeting the UserId parameter on the /Admin/ path.
Correlate database query logs with web access logs to identify malformed or unusually long queries originating from EditUser.php.
Baseline normal administrative traffic patterns and alert on requests to /Admin/EditUser.php from unauthenticated or external sources.

Monitoring Recommendations

Enable verbose HTTP request logging on the web server hosting the Online Job Portal and forward logs to a centralized analytics platform.
Monitor database audit logs for SELECT, UPDATE, and INFORMATION_SCHEMA queries triggered by the application user associated with the portal.
Alert on repeated 500-series responses from /Admin/EditUser.php, which often indicate probing for injection points.

How to Mitigate CVE-2026-15675

Immediate Actions Required

Restrict access to the /Admin/ directory using network-level allowlists or authentication gateways until a code fix is applied.
Deploy WAF rules that block requests containing SQL metacharacters in the UserId parameter.
Audit the Online Job Portal database for unauthorized modifications to user accounts and rotate any administrative credentials.

Patch Information

No official vendor patch has been referenced in the CVE record at the time of publication. Consult the Code Projects Resource and the GitHub Issue Discussion for any community-provided fixes. Organizations should refactor EditUser.php to use parameterized queries via PDO or MySQLi prepared statements and validate that UserId is a strictly numeric value before use.

Workarounds

Add server-side input validation to enforce that UserId is an integer before it reaches any SQL statement.
Apply least-privilege permissions to the database account used by the application so that it cannot alter schema or read sensitive tables.
If the administrative interface is not required for production use, disable or remove /Admin/EditUser.php from the deployed application.

bash

# Example WAF rule (ModSecurity) to block SQLi patterns in UserId
SecRule ARGS:UserId "@rx (?i)(union(\s|/\*.*\*/)+select|select.+from|or\s+1=1|--|#|;)" \
    "id:1026156750,phase:2,deny,status:403,\
    msg:'CVE-2026-15675 - SQLi attempt against EditUser.php UserId parameter',\
    tag:'application-multi',tag:'attack-sqli'"