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CVE-2026-57821 is a SQL injection vulnerability in Apache Fineract affecting the Office Search API endpoint used to list offices. Versions up to and including 1.14.0 are affected. The flaw exists because the orderBy request parameter is incorporated into a backend SQL query without sufficient validation. An earlier defensive change associated with CVE-2024-32838 used ColumnValidator logic, but that validation can be bypassed because bare subqueries placed in the ORDER BY position are not detected. As a result, an authenticated user who has permission to view offices can supply a crafted orderBy value and inject arbitrary SQL. The issue is particularly suited to time-based blind SQL injection, enabling inference of database contents through response timing.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
Repository is a Python proof-of-concept/exploit toolkit for CVE-2026-57821, an authenticated SQL injection in Apache Fineract’s offices listing API via the orderBy parameter. The code is not tied to a known exploit framework. Structure includes a main exploit (exploit.py), two verifier variants (root verifierPoC.py and Educational-Verifier-PoCs/verifierPoC.py), a minimal checker (Educational-Verifier-PoCs/cve.py), plus README/setup/dependency files. Main capability: exploit.py performs authenticated HTTP GET requests to the Fineract endpoint and injects SQL subqueries into orderBy. It first validates connectivity, calibrates baseline response time, then attempts backend DB detection using DB-specific payloads. Based on the README and visible code, it supports PostgreSQL, MySQL, MariaDB, MSSQL, Oracle, and references additional heavy-query detection/exploitation paths for SQLite, Firebird, DB2, Informix, H2, and a generic fallback. After DB identification, it extracts database metadata using blind techniques: version, current user, current database, and table names. Extraction logic uses iterative character recovery, likely binary-search-based for time-based blind SQLi, and error-based extraction for MSSQL. Verifier capability: verifierPoC.py and Educational-Verifier-PoCs/cve.py are detection-oriented scripts. They do not attempt broad data extraction; instead they send a small set of DB-specific payloads and infer vulnerability from timing delays or error strings such as 'Conversion failed'. These scripts are effectively vulnerability checkers, while exploit.py is the actual exploitation component. Targeting details: all scripts default to http://localhost:8080/fineract-provider/api/v1/offices and require Basic Auth plus the Fineract-Platform-TenantId header. Default credentials are hardcoded as mifos/password with tenant default, indicating the exploit expects authenticated low-privilege access. The README states affected versions are Apache Fineract <= 1.14.0 and patched in 1.15.0. Notable observations: the repository contains duplicated verifier code in multiple locations. Some scripts reference functions/modules not imported in the shown content (e.g., datetime, os), suggesting minor implementation issues, but the overall exploit intent and logic are clear. This is a real exploit repository with both verification and exploitation functionality, not merely a README or scanner.
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A high-severity SQL injection vulnerability in Apache Fineract's Office Search API where the orderBy parameter is concatenated into a SQL query, enabling authenticated users with specific permissions to perform time-based blind data extraction.
A SQL injection vulnerability in Apache Fineract's Office Search API.
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