Description

Efence developed by Thinking Software Technology has a SQL Injection vulnerability. Unauthenticated remote attackers can access file upload functionality and read database contents.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.2",
  "pubDate": "2026-08-26T09:16:49.180Z",
  "pubdate": "2026-08-26T09:16:49.180Z",
  "executiveSummary": "Thinking Software Technology Efence is susceptible to a critical SQL Injection (SQLi) vulnerability residing within its file upload functionality. This security flaw enables unauthenticated remote attackers to execute arbitrary SQL commands against the backend database management system. By leveraging this vulnerability, an attacker can bypass standard authentication mechanisms to perform unauthorized data exfiltration, including the retrieval of sensitive database contents. The risk is considered high due to the lack of required authentication, allowing any network-adjacent or internet-exposed attacker to manipulate application queries. Successful exploitation could lead to full database compromise, data breaches, and potential loss of data integrity. Organizations utilizing Efence must address this flaw immediately to prevent unauthorized access and potential remote code execution pathways linked to backend database interaction.",
  "technicalDetails": "The vulnerability originates from improper neutralization of special elements used in an SQL command within the file upload module of Efence. The application fails to adequately sanitize or parameterize user-supplied input before incorporating it into database queries, allowing for the injection of malicious SQL syntax.\nThe attack flow begins with an unauthenticated attacker interacting with the exposed file upload interface. Instead of providing a legitimate file, the attacker submits crafted input containing SQL injection payloads within fields processed by the upload routine. Because the application logic concatenates this input directly into dynamic SQL queries, the database engine interprets the attacker's input as executable code rather than plain data.\nSpecifically, the vulnerability allows for 'UNION-based' or 'error-based' SQL injection techniques, enabling the attacker to modify the query structure to append unauthorized results. By manipulating the backend query, an attacker can bypass input validation filters that may otherwise be present in standard application flows, as the upload functionality is often treated with lower scrutiny or legacy parsing logic.\nThe scope of impact includes full read access to the application database. This encompasses the retrieval of system configuration settings, application users, credentials, and potentially sensitive organizational data stored within the database schema. If the database service account possesses excessive administrative permissions on the underlying host, the SQLi may escalate into further system compromise, such as reading or writing arbitrary files on the server filesystem if database features like 'INTO OUTFILE' are available.\nThe vulnerability is accessible via the network layer without the need for pre-existing session tokens or user privileges, characterizing it as a zero-click exploit vector. The lack of parameterized queries or prepared statements is the fundamental root cause, exposing the application to standard database manipulation attacks that ignore front-end application logic."
}