CVE-2026-11795: E-Commerce Pack Information Disclosure Flaw

CVE-2026-11795 Overview

CVE-2026-11795 is an observable discrepancy vulnerability [CWE-203] in Softtr Informatics Trading Limited Company E-Commerce Pack. The flaw allows unauthenticated attackers to enumerate valid user accounts through differences in application responses. This technique, known as account footprinting, lets adversaries build target lists for credential stuffing, password spraying, or phishing campaigns. The vulnerability affects E-Commerce Pack versions before 5.03.01.54.

Critical Impact
Unauthenticated remote attackers can enumerate valid accounts on affected E-Commerce Pack deployments without user interaction, exposing customer identity data for follow-on attacks.

Affected Products

Softtr Informatics Trading Limited Company E-Commerce Pack versions before 5.03.01.54

Discovery Timeline

2026-10-02 - CVE-2026-11795 published to NVD
2026-10-08 - Last updated in NVD database

Technical Details for CVE-2026-11795

Vulnerability Analysis

The vulnerability stems from an observable response discrepancy in the E-Commerce Pack application. The platform returns distinguishable responses when a submitted identifier matches an existing account versus when it does not. Attackers compare these responses to confirm whether a given email, username, or customer identifier is registered in the system.

Attack complexity is low and no authentication or user interaction is required. The weakness only exposes confidentiality of account existence data; integrity and availability remain intact. While the direct impact is limited to information disclosure, enumerated accounts feed higher-impact attacks such as credential stuffing and targeted phishing.

Root Cause

The root cause is improper handling of application responses on identity-related endpoints, classified under CWE-203: Observable Discrepancy. Response differences, which may appear in HTTP status codes, response bodies, redirects, or timing, allow an attacker to distinguish valid from invalid accounts. Secure implementations return uniform responses regardless of whether the submitted identifier exists.

Attack Vector

The attack is executed over the network against public-facing E-Commerce Pack endpoints such as login, registration, or password reset. An attacker scripts repeated requests with candidate identifiers and parses responses for observable differences. No credentials or privileges are required. Enumerated identifiers are then combined with leaked credential dumps to attempt account takeover.

See the Siber Güvenlik Notification TR-26-1243 for additional technical context.

Detection Methods for CVE-2026-11795

Indicators of Compromise

High volumes of requests to login, registration, or password-reset endpoints from a single source IP or small IP range
Sequential or dictionary-based identifier submissions targeting user or email fields
Elevated 4xx response rates on authentication endpoints without corresponding successful logins
User-Agent patterns consistent with automation tools such as curl, python-requests, or headless browsers

Detection Strategies

Deploy rate limiting and anomaly detection on identity endpoints to flag enumeration patterns
Baseline normal request volumes per source and alert on deviations exceeding thresholds
Correlate repeated password reset or registration attempts with downstream login failures to identify account footprinting leading to credential stuffing

Monitoring Recommendations

Log and retain full request and response metadata for /login, /register, and /password-reset endpoints
Monitor web application firewall (WAF) telemetry for enumeration signatures
Alert on bursts of requests sharing a user-agent, referer, or ASN targeting identity flows

How to Mitigate CVE-2026-11795

Immediate Actions Required

Upgrade E-Commerce Pack to version 5.03.01.54 or later
Audit authentication, registration, and password reset endpoints for response discrepancies
Enable rate limiting and CAPTCHA on identity-related endpoints to deter automated enumeration
Review access logs for prior enumeration activity and reset affected accounts if indicators are present

Patch Information

Softtr addressed the vulnerability in E-Commerce Pack version 5.03.01.54. Administrators should apply the vendor update as the primary remediation. Refer to the Siber Güvenlik Notification TR-26-1243 for vendor coordination details.

Workarounds

Configure the application and reverse proxy to return uniform response codes and messages regardless of account existence
Enforce strict rate limits per IP and per account identifier on login, registration, and reset endpoints
Deploy a WAF rule set to block high-frequency identifier enumeration patterns
Require CAPTCHA or proof-of-work challenges on identity endpoints exposed to the internet

bash

# Example nginx rate-limit configuration for identity endpoints
limit_req_zone $binary_remote_addr zone=auth_zone:10m rate=5r/m;

server {
    location ~ ^/(login|register|password-reset) {
        limit_req zone=auth_zone burst=3 nodelay;
        proxy_pass http://ecommerce_backend;
    }
}