Improper Authorization in Grocery Management System Users Module

A weakness has been identified in SourceCodester Multi-Vendor Online Grocery Management System 1.0. This affects the function save_users of the file classes/Users.php. This manipulation causes improper authorization. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

Casky was already ahead

This CVE exploits attack patterns that Casky's 283matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

CVE-2026-14690 represents a critical authorization flaw in SourceCodester's Multi-Vendor Online Grocery Management System version 1.0, specifically within the save_users function of classes/Users.php. This vulnerability allows attackers to manipulate user creation and modification operations without proper permission checks, potentially enabling unauthorized privilege escalation, account takeover, or lateral movement within the system. Organizations deploying this grocery management platform—particularly small to mid-sized retailers and their supply chain partners—face immediate risk as the exploit is publicly available and actively weaponizable. The vulnerability's CVSS score of 7.3 reflects the high severity of improper authorization flaws that can compromise user account integrity and system trust.

Casky's AI-powered skill mapping identifies this vulnerability across 283 security skills aligned with MITRE ATT&CK's TA0004 (Privilege Escalation) and TA0006 (Credential Access) tactics. Practitioners using Casky would detect attack patterns including: unauthorized modification of user roles and permissions through save_users function calls (TA0004—Abuse Elevation Control Mechanisms); credential harvesting or account creation by unauthenticated actors (TA0006—Brute Force or Credential Dumping); and lateral movement post-exploitation. Claude's extended reasoning capability helps practitioners understand the attack chain: an attacker exploits the missing authorization check to elevate their privileges, create administrative accounts, or modify existing user credentials—then pivots to access sensitive grocery data or vendor information. Practitioners would see these patterns in access logs showing anomalous save_users calls, unexpected user role changes, and account creation events from untrusted sources.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

283 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-14690.

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

Access with Stolen Session Cookie

penetration testing · medium

Run

MITRE ATT&CK Techniques

TA0004 TA0006

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