CVE-2025-8158 Overview
CVE-2025-8158 is a SQL injection vulnerability in PHPGurukul Login and User Management System version 3.3. The flaw resides in /admin/yesterday-reg-users.php, where the ID parameter is passed directly into a SQL query without sanitization. Attackers can manipulate this parameter to inject arbitrary SQL statements. The vulnerability is remotely exploitable and requires only low-level authenticated access to the admin interface. Public disclosure of the exploitation technique has occurred through VulDB and GitHub, increasing the risk of opportunistic attacks against unpatched installations.
Critical Impact
Authenticated attackers can inject arbitrary SQL through the ID parameter, potentially exposing user credentials and administrative data stored in the backend database.
Affected Products
- PHPGurukul User Registration & Login and User Management System 3.3
- Deployments using the /admin/yesterday-reg-users.php administrative endpoint
- Web applications built on the affected PHPGurukul codebase
Discovery Timeline
- 2025-07-25 - CVE-2025-8158 published to NVD
- 2026-04-29 - Last updated in NVD database
Technical Details for CVE-2025-8158
Vulnerability Analysis
The vulnerability is a classic SQL injection flaw classified under [CWE-89] (Improper Neutralization of Special Elements used in an SQL Command) and [CWE-74] (Improper Neutralization of Special Elements in Output). The affected file /admin/yesterday-reg-users.php accepts the ID GET or POST parameter and concatenates its value into a SQL statement without parameterization or input validation.
An authenticated attacker with access to the admin panel can append SQL operators such as UNION SELECT, OR 1=1, or time-based payloads like SLEEP() to the ID argument. This allows extraction of arbitrary table data, including user credentials and session tokens, or modification of records. The exploitability is increased by the fact that the public proof-of-concept has been disclosed.
Root Cause
The root cause is direct interpolation of user-controlled input into a SQL query string. The application does not use prepared statements, parameterized queries, or input filtering on the ID parameter before passing it to the MySQL driver. This violates secure coding practices for database access in PHP.
Attack Vector
The attack vector is network-based and requires authenticated access to the administrative interface. An attacker sends a crafted HTTP request to /admin/yesterday-reg-users.php with a malicious ID parameter value. No user interaction is needed beyond the attacker's session. The vulnerability mechanism is described in the GitHub Issue Discussion and tracked under VulDB #317572.
Detection Methods for CVE-2025-8158
Indicators of Compromise
- HTTP requests to /admin/yesterday-reg-users.php containing SQL metacharacters in the ID parameter such as ', --, UNION, or SLEEP
- Unexpected database errors or query timeouts logged by the MySQL/MariaDB backend
- Anomalous SELECT queries against information_schema or user credential tables originating from the web application user
- Admin session activity from unusual source IP addresses or at irregular hours
Detection Strategies
- Inspect web server access logs for non-numeric values or URL-encoded SQL syntax in the ID query string parameter
- Deploy a Web Application Firewall (WAF) rule to flag SQL injection signatures targeting the affected endpoint
- Correlate database error log entries with HTTP requests to /admin/yesterday-reg-users.php
- Monitor for outbound data transfers following administrative endpoint access
Monitoring Recommendations
- Enable verbose MySQL query logging on the user management database during incident response
- Forward web server and database logs to a centralized SIEM for correlation
- Alert on repeated 500-series HTTP responses from the affected PHP script
- Track admin account login events and session reuse patterns
How to Mitigate CVE-2025-8158
Immediate Actions Required
- Restrict network access to the /admin/ directory using IP allowlisting or VPN-based access controls
- Audit existing admin accounts and rotate credentials for any account with access to the affected endpoint
- Review database logs for evidence of prior exploitation against the ID parameter
- Apply a WAF rule blocking SQL metacharacters in requests to yesterday-reg-users.php
Patch Information
No official vendor patch is listed in the NVD record at the time of publication. Administrators should monitor the PHP Gurukul homepage for updated releases. Until a vendor fix is available, code-level remediation requires replacing the vulnerable query with a prepared statement using PDO or MySQLi parameter binding and casting the ID value to an integer before use.
Workarounds
- Modify /admin/yesterday-reg-users.php locally to cast $_GET['ID'] to an integer using intval() before SQL use
- Replace inline SQL concatenation with parameterized queries via PDO prepare() and bindParam()
- Disable or remove the yesterday-reg-users.php script if the reporting feature is not required
- Place the admin panel behind HTTP basic authentication as a secondary access barrier
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
