CVE-2026-11584: SQL Injection in CodeAstro Student Attendance Management System 1.0

Technical summary

CVE-2026-11584 is a SQL injection flaw (CWE-89, CWE-74) in the /attendance-php/Admin/createClass.php endpoint when the action parameter is set to 'edit'. The vulnerability stems from insufficient input validation on the ID parameter, which is directly concatenated into SQL queries without parameterized preparation. While the attack requires valid administrator or user authentication (reflected in the CVSS:3.1 PR:L requirement), the lack of complexity controls and network accessibility make exploitation straightforward for any authenticated session. The public disclosure of exploit code has eliminated the zero-day window.

Business impact

Organizations deploying CodeAstro SAMS 1.0 face direct risk to student records, attendance data integrity, and system availability. A compromised admin account or any authenticated user with editing permissions could exfiltrate personally identifiable information (PII) about students, modify attendance records for grade manipulation, or trigger denial-of-service conditions through resource-intensive queries. Educational institutions face regulatory exposure under FERPA (U.S.) and equivalent data protection laws, plus reputational damage if student data breaches occur. The vulnerability also enables lateral movement if the database host is shared with other systems.

Affected systems

CodeAstro Student Attendance Management System version 1.0 is confirmed vulnerable. No patch version has been announced by the vendor as of the last modification date. Organizations running this version should assume active exposure. Check your instance version in the application settings or database schema metadata. Newer versions, if available from the CodeAstro vendor, may contain remediations—verify directly with the vendor's security advisory.

Exploitability

Exploitability is high in practice despite a MEDIUM CVSS score. The vulnerability requires authentication but does not require special user interaction or privilege escalation—any valid login suffices. SQL injection attacks on this endpoint can be crafted using standard payloads (UNION-based, time-based blind, or error-based techniques). Public exploit code lowers the barrier for malicious actors, script kiddies, and insider threats. The network-accessible nature (AV:N) combined with no user interaction (UI:N) requirement means any authenticated user account—including compromised credentials from phishing or credential stuffing—can trigger the flaw.

Remediation

Primary remediation is vendor patching. Contact CodeAstro support to request a security update for version 1.0 or confirmation that a patched version exists and verify the version number against the official advisory. Until patching is available, implement network-level access controls to restrict admin interface access to trusted IP ranges, enforce multi-factor authentication for all admin accounts to reduce credential compromise risk, and apply a Web Application Firewall (WAF) rule to block SQL injection signatures in the createClass.php endpoint parameters. Monitor database query logs for anomalous SQL patterns in real time. Consider running CodeAstro SAMS in an isolated network segment to contain lateral movement risk.

Patch guidance

Verify the availability of a patched version directly from CodeAstro's official security advisory or support channel. When a patch is released, test it in a non-production environment before deploying to ensure no regression in attendance reporting or administrative functions. Patch deployment is recommended as critical priority due to public exploit availability. If the vendor discontinues support for version 1.0 without providing a patch, consider migration to an actively maintained alternative or implementing compensating controls (WAF rules, network segmentation, enhanced monitoring) as a temporary measure while procurement and deployment of a replacement system proceeds.

Detection guidance

Monitor application and database logs for: (1) unusual SQL keywords in createClass.php request parameters (SELECT, UNION, DROP, DELETE, INSERT); (2) encoded or obfuscated SQL payloads (%27, %2d%2d, /*, CHAR()); (3) multiple failed or slow database queries originating from the admin interface; (4) database errors logged immediately after requests to the createClass.php endpoint. Enable SQL query logging at the database layer (MySQL general_log or equivalent) with parameter capture during the investigation window. Web access logs should be parsed for suspicious ID parameter values. Set up alerting on any admin panel access from unexpected geographic locations or at unusual hours if baseline user behavior is known.

Why prioritize this

Although CVSS rates this as MEDIUM, the combination of public exploit availability, authenticated-only requirement (reducing perceived urgency in some environments), and high sensitivity of student data elevates practical priority. Educational institutions should treat this as HIGH priority because: (1) student PII is a high-value target for identity theft; (2) regulatory penalties for FERPA violations are severe; (3) any authenticated user can exploit it, including lower-privilege staff or compromised accounts; (4) the exploit is weaponized and public. Patch immediately if available, or implement compensating controls within 48 hours.

Risk score, explained

The CVSS:3.1 score of 6.3 reflects the requirement for prior authentication (PR:L), which reduces the baseline attack surface compared to an unauthenticated SQL injection. However, this does not account for: (1) the prevalence and ease of SQL injection exploitation; (2) the high sensitivity of student data in scope; (3) the public availability of working exploit code; (4) the likelihood that organizational password hygiene may be weak, making authentication a surmountable barrier. Organizations handling sensitive data should mentally adjust this to HIGH priority in their risk models. The CVSS vector correctly identifies impact to confidentiality, integrity, and availability (C:L, I:L, A:L)—SQL injection typically allows all three.

Frequently asked questions