CVE-2026-11508: Leave Management System SQLi Vulnerability

CVE-2026-11508 Overview

CVE-2026-11508 is a SQL injection vulnerability in CodeAstro Leave Management System 1.0. The flaw resides in the /admin/search_staff_to_assign_pc.php script, where the Name parameter is passed to a backend SQL query without proper sanitization. Remote attackers holding low-privileged credentials can manipulate the Name argument to inject arbitrary SQL statements. The exploit details have been publicly disclosed, increasing the likelihood of opportunistic abuse against exposed deployments. The weakness maps to [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).

Critical Impact
Authenticated remote attackers can inject SQL through the Name parameter of search_staff_to_assign_pc.php, exposing administrative database content in the Leave Management System.

Affected Products

CodeAstro Leave Management System 1.0
Deployments exposing /admin/search_staff_to_assign_pc.php
Installations that have not applied vendor-provided hardening

Discovery Timeline

2026-06-08 - CVE-2026-11508 published to NVD
2026-06-08 - Last updated in NVD database

Technical Details for CVE-2026-11508

Vulnerability Analysis

The vulnerability exists in the administrative search workflow of the CodeAstro Leave Management System. The search_staff_to_assign_pc.php endpoint accepts a Name parameter intended to filter staff records. The application concatenates this user-supplied value directly into a SQL statement, allowing an attacker to break out of the string context and append additional SQL clauses. Successful injection enables data extraction, authentication state manipulation, and modification of leave or staff records. Because the entry point sits under /admin/, exploitation requires a valid low-privileged session, but no additional user interaction is needed.

Root Cause

The root cause is the absence of parameterized queries or input validation on the Name argument. The PHP code passes attacker-controlled input into the SQL layer without binding parameters or escaping metacharacters. This is a textbook injection pattern classified under [CWE-74].

Attack Vector

The attack vector is network-based. An authenticated attacker submits a crafted HTTP request to /admin/search_staff_to_assign_pc.php with a malicious Name payload. Typical payloads use boolean-based or union-based techniques to enumerate database schema and extract records. Public disclosure of the proof of concept lowers the barrier for exploitation against internet-exposed instances. Refer to the GitHub Issue for CVE-2026-11508 and the VulDB CVE-2026-11508 Entry for additional technical context.

Detection Methods for CVE-2026-11508

Indicators of Compromise

HTTP requests to /admin/search_staff_to_assign_pc.php containing SQL metacharacters such as ', --, UNION, or SLEEP( in the Name parameter
Web server logs showing repeated requests with varying Name values from a single source, consistent with injection probing
Database error messages or unusually long response times tied to staff search queries

Detection Strategies

Deploy web application firewall rules that inspect the Name parameter for SQL syntax and block known injection patterns
Correlate authenticated admin sessions with anomalous query patterns or error-rate spikes in the application database
Review PHP and MySQL logs for syntax errors originating from search_staff_to_assign_pc.php

Monitoring Recommendations

Enable verbose access logging on all /admin/ endpoints and forward logs to a centralized analytics platform
Alert on outbound data transfers from the database host that exceed baseline volumes
Monitor for new or modified administrative accounts that could indicate successful post-exploitation

How to Mitigate CVE-2026-11508

Immediate Actions Required

Restrict network access to /admin/search_staff_to_assign_pc.php using IP allow-lists or VPN-only access
Rotate administrative credentials and audit recent admin session activity for anomalous searches
Apply WAF signatures to block SQL metacharacters in the Name parameter until a patch is available

Patch Information

No vendor patch has been published in the referenced advisories at the time of disclosure. Monitor the CodeAstro Security Resource and the VulDB Vulnerability #369128 entry for updates. Until a fix is released, replace the affected query with parameterized statements using PDO prepared statements or MySQLi bound parameters.

Workarounds

Disable or remove the search_staff_to_assign_pc.php script if the staff assignment workflow is not in active use
Implement server-side input validation that rejects non-alphabetic characters in the Name parameter
Enforce least-privilege database accounts so the web application cannot read or modify tables outside its functional scope

bash

# Example WAF rule (ModSecurity) to block SQL metacharacters in the Name parameter
SecRule ARGS:Name "@rx (?i)(union\s+select|sleep\(|--|;|')" \
    "id:1011508,phase:2,deny,status:403,log,\
     msg:'CVE-2026-11508 SQLi attempt on search_staff_to_assign_pc.php'"