{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/products/complaint-management-system-1.0/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.3,"id":"CVE-2026-75089"}],"_cs_exploited":true,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Complaint Management System (1.0)"],"_cs_severities":["high"],"_cs_tags":["sql-injection","web-vulnerability"],"_cs_type":"threat","_cs_vendors":["PHPGurukul"],"content_html":"\u003cp\u003eA critical SQL injection vulnerability, identified as CVE-2026-75089, exists within version 1.0 of the PHPGurukul Complaint Management System. The flaw resides in the 'email' argument handled by the 'user/check_availability.php' file. This vulnerability enables remote, unauthenticated attackers to inject malicious SQL commands, potentially leading to unauthorized data exfiltration, modification, or destruction within the application's backend database. Publicly available exploit code for this vulnerability has been identified, increasing the risk of active exploitation. Organizations utilizing this system are at significant risk if they cannot immediately isolate or patch the affected component.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker performs reconnaissance to identify instances of PHPGurukul Complaint Management System 1.0.\u003c/li\u003e\n\u003cli\u003eAttacker crafts an HTTP GET or POST request targeting the 'user/check_availability.php' endpoint.\u003c/li\u003e\n\u003cli\u003eAttacker injects malicious SQL syntax into the 'email' parameter value.\u003c/li\u003e\n\u003cli\u003eThe web application fails to properly sanitize the 'email' input before passing it to the database query.\u003c/li\u003e\n\u003cli\u003eThe backend database executes the attacker-supplied SQL commands.\u003c/li\u003e\n\u003cli\u003eAttacker leverages the database access to extract sensitive information or modify records.\u003c/li\u003e\n\u003cli\u003eFinal objective: Complete compromise of the application data or potential service disruption.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability allows unauthenticated attackers to gain unauthorized access to backend database information. In enterprise environments, this could result in the theft of user data, credential harvesting, or further compromise of the web server infrastructure.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImmediately audit web server logs for HTTP requests directed at 'user/check_availability.php' containing abnormal characters such as single quotes, semicolons, or SQL keywords in the 'email' parameter.\u003c/li\u003e\n\u003cli\u003eImplement Web Application Firewall (WAF) rules to inspect and block requests to the vulnerable endpoint that contain SQL injection payloads.\u003c/li\u003e\n\u003cli\u003eIf no patch is available, restrict access to the 'user/check_availability.php' file via server-side access controls.\u003c/li\u003e\n\u003cli\u003eDeploy the provided Sigma rule to your web server access logs to detect exploitation attempts.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-08-18T02:52:52Z","date_published":"2026-08-18T02:52:52Z","id":"https://feed.craftedsignal.io/briefs/2026-08-phpgurukul-sql-injection/","summary":"PHPGurukul Complaint Management System 1.0 contains an unauthenticated SQL injection vulnerability in the user/check_availability.php file, allowing remote attackers to execute arbitrary database commands.","title":"SQL Injection in PHPGurukul Complaint Management System","url":"https://feed.craftedsignal.io/briefs/2026-08-phpgurukul-sql-injection/"}],"language":"en","title":"CraftedSignal Threat Feed - Complaint Management System (1.0)","version":"https://jsonfeed.org/version/1.1"}