CVE-2026-14750: mjperpinosa stumasy SQL Injection Flaw

CVE-2026-14750 Overview

CVE-2026-14750 is a SQL injection vulnerability in the mjperpinosa stumasy project, a PHP-based application distributed via GitHub. The flaw resides in the Notes_controller::accessing_dictionary_authorization function within application/PHP/objects/notes/accessing_dictionary_authorization.php. Attackers can manipulate the Password argument to inject arbitrary SQL statements. Exploitation is possible remotely without authentication or user interaction. The exploit has been published, increasing the likelihood of opportunistic attacks. Because stumasy uses a rolling release model, no discrete patched version is available, and the maintainer has not responded to the issue report at time of disclosure.

Critical Impact
Unauthenticated remote attackers can inject SQL via the Password parameter, potentially reading, altering, or destroying data in the stumasy database.

Affected Products

mjperpinosa stumasy up to commit 327d1b0f2915ba79d7ef8ebb74553e987609d9be
File: application/PHP/objects/notes/accessing_dictionary_authorization.php
Function: Notes_controller::accessing_dictionary_authorization

Discovery Timeline

2026-07-05 - CVE-2026-14750 published to NVD
2026-07-07 - Last updated in NVD database

Technical Details for CVE-2026-14750

Vulnerability Analysis

The vulnerability is a SQL injection classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component). The Notes_controller::accessing_dictionary_authorization method accepts a Password argument and passes it into a SQL query without sufficient sanitization or parameterization. Attackers who supply crafted input alter the intended query structure and execute arbitrary SQL against the backend database. Because the endpoint is reachable over the network and does not require authentication, exploitation is straightforward.

The stumasy project uses a rolling release delivery model, so the maintainer does not publish discrete version numbers for affected or fixed builds. The referenced commit 327d1b0f2915ba79d7ef8ebb74553e987609d9be marks the latest known-vulnerable state. According to public tracking, the maintainer has not responded to the GitHub issue report at the time of publication.

Root Cause

The root cause is direct concatenation or unsafe interpolation of the Password request parameter into a SQL statement inside the authorization routine. The code path does not use prepared statements or parameter binding, and it does not enforce input validation on the Password field before it reaches the database driver.

Attack Vector

An unauthenticated remote attacker submits a crafted HTTP request to the endpoint handled by Notes_controller::accessing_dictionary_authorization. The malicious Password value contains SQL metacharacters that break out of the intended string context and append attacker-controlled clauses. Public exploit details are available through the VulDB entry for CVE-2026-14750, and no user interaction is required.

No verified proof-of-concept code is republished here. Refer to the VulDB Vulnerability Details and the GitHub Issue Tracker for technical specifics.

Detection Methods for CVE-2026-14750

Indicators of Compromise

HTTP requests to paths invoking accessing_dictionary_authorization that contain SQL metacharacters such as ', --, UNION, OR 1=1, or SLEEP( in the Password field.
Database error messages or unusually long response times originating from authorization requests.
Unexpected reads or writes against notes or dictionary tables that do not correspond to legitimate application workflows.

Detection Strategies

Deploy web application firewall rules that inspect the Password parameter on stumasy endpoints for SQL injection payloads and known signatures.
Enable database query logging and alert on parameterized queries returning boolean tautologies or time-based delay functions during authorization flows.
Correlate application logs with database logs to identify authorization attempts that produce anomalous query shapes.

Monitoring Recommendations

Monitor for repeated failed authorization attempts from a single source that vary the Password field content.
Track outbound database connections and query volume from the stumasy application host for spikes consistent with data exfiltration.
Review access logs for automated scanner user agents targeting the application/PHP/objects/notes/ directory.

How to Mitigate CVE-2026-14750

Immediate Actions Required

Restrict network access to the stumasy application until a fix is applied, using firewall rules or reverse proxy authentication.
Audit the accessing_dictionary_authorization code path and replace concatenated SQL with prepared statements using bound parameters.
Rotate database credentials and review database contents for signs of unauthorized modification.

Patch Information

No official patch is available at time of publication. The stumasy project uses a rolling release model and has not responded to the disclosure referenced in the GitHub Issue Tracker. Consult the GitHub Project Repository for future commits that address the input handling in accessing_dictionary_authorization.php.

Workarounds

Place the application behind a web application firewall configured to block SQL injection payloads targeting the Password parameter.
Enforce least-privilege on the database account used by stumasy so the account cannot execute administrative statements or access unrelated schemas.
Add server-side input validation in front of the vulnerable controller to reject non-printable characters, SQL keywords, and overly long values in the Password field.

bash

# Example WAF/nginx rule fragment to block obvious SQLi patterns on the vulnerable endpoint
location ~ /application/PHP/objects/notes/accessing_dictionary_authorization\.php$ {
    if ($args ~* "(union.*select|sleep\(|--|';|or\s+1=1)") {
        return 403;
    }
    proxy_pass http://stumasy_backend;
}