Description

Unauthenticated SQL Injection in JetAppointment <= 2.5.2 versions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.3",
  "pubDate": "2026-08-18T15:17:04.820Z",
  "pubdate": "2026-08-18T15:17:04.820Z",
  "executiveSummary": "An unauthenticated SQL injection vulnerability has been identified in the JetAppointment plugin, affecting versions <= 2.5.2. This security flaw allows unauthenticated remote attackers to inject malicious SQL statements into database queries executed by the application.\nThe vulnerability arises from insufficient input sanitization and improper parameterization of user-supplied data before it is processed by the underlying database management system.\nSuccessful exploitation of this vulnerability can lead to severe operational and security impacts, including unauthorized read access to sensitive database contents (such as user credentials, personal data, and application configurations), data tampering, and potential remote code execution or complete system compromise depending on database configurations and privileges.\nBecause the attack requires no prior authentication or administrative privileges, it represents a critical risk to exposed web applications running the vulnerable plugin versions.\nRemediation requires immediate attention, specifically updating the JetAppointment plugin to a patched version where input validation and parameterized queries are properly enforced.",
  "technicalDetails": "The vulnerability exists within the JetAppointment plugin <= 2.5.2 in components responsible for handling dynamic database queries based on user-supplied parameters.\nThe root cause of the flaw is the failure to properly sanitize, validate, or use prepared statements (parameterized queries) when handling incoming HTTP requests that interact with the database layer.\nBecause the affected endpoints do not enforce authentication or privilege checks, an unauthenticated remote attacker can interact directly with the vulnerable parameters over the network via standard HTTP requests.\nThe attack flow proceeds as follows: First, the attacker identifies an input vector or parameter within the JetAppointment plugin that is concatenated directly into an SQL query string without adequate escaping. Second, the attacker crafts a malicious payload containing SQL syntax (such as UNION operators, boolean-based conditions, or time-based delay functions) designed to manipulate the logical structure of the original database query. Third, the crafted payload is submitted to the vulnerable endpoint via HTTP GET or POST methods.\nUpon receiving the request, the application passes the unsanitized input directly to the database driver. The database engine then executes the modified query, returning unintended data structures, error messages containing database metadata, or executing injected subqueries.\nPost-exploitation impact includes the extraction of sensitive tables, enumeration of database schemas, modification of application data, and in environments with permissive database user privileges, potential interaction with the underlying operating system."
}