CVE-2026-2088: Beauty Parlour Management System SQLi Flaw

CVE-2026-2088 Overview

CVE-2026-2088 is a SQL injection vulnerability in PHPGurukul Beauty Parlour Management System 1.1. The flaw resides in /admin/accepted-appointment.php, where the delid parameter is passed unsanitized into a database query. Attackers can manipulate the parameter remotely to inject arbitrary SQL statements. The exploit details have been publicly disclosed, increasing the risk of opportunistic abuse. The issue is categorized under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).

Critical Impact

Remote attackers can inject arbitrary SQL through the delid parameter, exposing appointment data and potentially the entire backend database without requiring authentication context validation.

Affected Products

• PHPGurukul Beauty Parlour Management System 1.1
• Component: /admin/accepted-appointment.php
• Vulnerable parameter: delid

Discovery Timeline

• 2026-02-07 - CVE-2026-2088 published to NVD
• 2026-04-29 - Last updated in NVD database

Technical Details for CVE-2026-2088

Vulnerability Analysis

The vulnerability exists in the administrative appointment management page of PHPGurukul Beauty Parlour Management System 1.1. The file /admin/accepted-appointment.php accepts a delid parameter via HTTP request and concatenates the value directly into a SQL query. Because the application does not apply prepared statements or input sanitization, attackers can break out of the intended query context. The vulnerability is reachable over the network and disclosed publicly through the GitHub Issue Tracker and VulDB #344655.

Root Cause

The root cause is improper neutralization of user-supplied input [CWE-74]. The delid parameter, intended to identify an appointment record for deletion, flows into a SQL DELETE statement without parameterized binding. Any attacker who can reach the admin endpoint can therefore alter the query structure.

Attack Vector

The attack vector is network-based. An attacker issues a crafted HTTP request to /admin/accepted-appointment.php with a malicious delid value containing SQL syntax such as a UNION clause, time-based blind payload, or stacked query. Successful injection enables data extraction, modification of records, or enumeration of database schema.

No verified proof-of-concept code is available. Refer to the VulDB advisory and the GitHub Issue Tracker for the public disclosure details.

Detection Methods for CVE-2026-2088

Indicators of Compromise

• HTTP requests to /admin/accepted-appointment.php containing SQL metacharacters such as ', --, UNION, SLEEP(, or OR 1=1 within the delid parameter.
• Unusual database errors logged by the application or MySQL stack referencing delid-driven queries.
• Unexpected DELETE or SELECT operations on appointment tables originating from the admin endpoint.

Detection Strategies

• Inspect web server access logs for delid parameter values that deviate from numeric input.
• Deploy a Web Application Firewall (WAF) rule set tuned to block SQL injection patterns targeting PHP admin endpoints.
• Enable MySQL general query logging temporarily to correlate suspicious requests with executed queries.

Monitoring Recommendations

• Alert on repeated 500-series HTTP responses from /admin/accepted-appointment.php, which often indicate SQL syntax probing.
• Monitor administrative panels for access from unexpected source IPs or geographies.
• Track database account activity for schema enumeration queries against information_schema.

How to Mitigate CVE-2026-2088

Immediate Actions Required

• Restrict access to the /admin/ directory using IP allowlisting or VPN-only access until a fix is applied.
• Place the application behind a WAF with SQL injection signatures enabled.
• Audit the appointments database for unauthorized record modifications or deletions.

Patch Information

No vendor patch has been published at the time of NVD listing. Monitor the PHPGurukul website and the VulDB tracking entry for vendor remediation updates. Operators should consider migrating off the affected version if no fix is released.

Workarounds

• Modify /admin/accepted-appointment.php to use parameterized queries via PDO or mysqli prepared statements instead of string concatenation.
• Cast the delid value to an integer with intval() before it reaches any SQL statement as a temporary control.
• Apply server-side input validation rejecting non-numeric delid values and return HTTP 400 on violation.

# Example mod_security rule to block non-numeric delid values
SecRule ARGS:delid "!@rx ^[0-9]+$" \
    "id:1002088,phase:2,deny,status:403,\
    msg:'CVE-2026-2088 - Non-numeric delid blocked',\
    tag:'sql-injection',tag:'phpgurukul'"