CVE-2026-121524 in School-Management-System
Summary
by MITRE • 11/04/2026
A flaw has been found in sumiie24 School-Management-System up to d946d649c7c95e101fc5679ecd91999533bb10d7. Affected by this issue is some unknown functionality of the file parent_Login.php of the component Public Search Feature. Executing a manipulation of the argument email can lead to sql injection. The attack may be performed from remote. The exploit has been published and may be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 11/04/2026
The vulnerability identified within the sumiie24 School-Management-System represents a critical security flaw located specifically within the Public Search Feature component, affecting code versions up to commit d946d649c7c95e101fc5679ecd91999533bb10d7. The root cause of this issue resides in the file parent_Login.php, where the application fails to adequately sanitize or validate user-supplied input before incorporating it into database queries. Specifically, the email argument is susceptible to SQL injection attacks, allowing an attacker to manipulate the underlying Structured Query Language executed by the backend database management system. This type of vulnerability arises from a fundamental failure in implementing secure coding practices regarding data handling and query construction, which are essential for maintaining the integrity and confidentiality of stored information within web applications that manage sensitive educational records.
From a technical perspective, this flaw aligns with Common Weakness Enumeration identifier CWE-89, known as Improper Neutralization of Special Elements used in an SQL Command. The absence of parameterized queries or prepared statements means that maliciously crafted input can alter the logic of the database query itself rather than being treated merely as data. This allows for a wide range of exploitation techniques beyond simple authentication bypasses. Attackers can leverage this weakness to extract sensitive data from other tables within the same database schema, modify existing records, or even execute administrative operations on the database server depending on the privileges assigned to the application's database user account. The presence of an available exploit indicates that the vulnerability is well-understood and easily weaponized by threat actors with moderate technical proficiency.
The operational impact of this SQL injection vulnerability is severe due to its remote exploitable nature. Since the flaw exists within a public-facing feature, it does not require prior authentication or access credentials for exploitation. This significantly lowers the barrier to entry for attackers, enabling them to target any instance of the vulnerable software over the internet without needing social engineering or local network access. The potential consequences include unauthorized disclosure of personally identifiable information belonging to students and staff, such as names, contact details, and potentially hashed passwords if password storage practices are also weak. Furthermore, successful exploitation could lead to complete compromise of the underlying server infrastructure if the database user has elevated privileges that allow for operating system command execution or file read/write operations via specific SQL functions like LOAD_FILE or INTO OUTFILE in MySQL environments.
Industry frameworks such as MITRE ATT&CK categorize this type of vulnerability under techniques related to Data from Information Repositories, specifically T1213 which involves data exfiltration through database queries. The ability to perform remote exploitation places this flaw within the initial access and discovery phases of a cyber attack lifecycle, potentially serving as an entry point for more sophisticated multi-stage attacks including lateral movement or persistent backdoor installation. Given that the vendor utilizes a rolling release model where version information is not explicitly disclosed, identifying affected instances can be challenging for administrators relying on traditional patch management systems based on static version numbers. This lack of clear versioning complicates vulnerability assessment and remediation efforts, requiring organizations to inspect source code commits or specific file hashes rather than simple version strings.
Mitigation strategies must address both immediate technical fixes and broader security posture improvements. The primary remedy involves refactoring the affected PHP code in parent_Login.php to utilize prepared statements with parameterized queries for all database interactions involving user input. This ensures that data is strictly separated from SQL logic, neutralizing injection attempts regardless of their content. Additionally, implementing strict input validation using allowlists for email formats can provide an additional layer of defense-in-depth. For organizations currently running vulnerable versions, immediate isolation or disabling of the public search feature until a patched version is available is recommended to reduce the attack surface. Long-term solutions should include adopting secure development lifecycle practices such as static application security testing and regular code reviews focused on database interaction patterns. Since the vendor has been unresponsive to disclosure efforts, affected users must rely on community-driven patches or consider migrating to alternative school management systems that demonstrate a commitment to timely vulnerability remediation and transparent version control.