CVE-2021-41511

CRITICAL

Lodging Reservation Management System 1.0 - SQL Injection via Login Username/Password Fields

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2021-41511. PoCs published by Nitin Sharma, vidvansh.

AI-analyzed exploit summary This exploit demonstrates an authentication bypass vulnerability in Lodging Reservation Management System 1.0 via SQL injection. By manipulating the username and password fields with SQL payloads, an attacker can bypass authentication and gain admin access.

Description

The username and password field of login in Lodging Reservation Management System V1 can give access to any user by using SQL injection to bypass authentication.

Exploits (3)

exploitdb WORKING POC
by Nitin Sharma · textwebappsphp
https://www.exploit-db.com/exploits/50372

This exploit demonstrates an authentication bypass vulnerability in Lodging Reservation Management System 1.0 via SQL injection. By manipulating the username and password fields with SQL payloads, an attacker can bypass authentication and gain admin access.

Classification
Working Poc 100%
Attack Type
Sqli
Complexity
Trivial
Reliability
Reliable
Target: Lodging Reservation Management System v1.0
No auth needed
Prerequisites: Access to the admin login page · Ability to intercept and modify HTTP requests
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC
by vidvansh · poc
https://github.com/vidvansh/CVE-2021-41511

This PoC demonstrates an SQL injection vulnerability in Lodging Reservation Management System 1.0, allowing authentication bypass via crafted username and password inputs. The exploit uses a classic SQLi payload to bypass login checks.

Classification
Working Poc 95%
Attack Type
Sqli
Complexity
Trivial
Reliability
Reliable
Target: Lodging Reservation Management System v1.0
No auth needed
Prerequisites: Access to the admin login page · Burp Suite or similar intercepting proxy
devstral-2 · analyzed Feb 16, 2026 Full analysis →
inthewild WORKING POC
poc
https://github.com/ni7insharma/cve-2021-41511

This repository provides a functional SQL injection exploit for CVE-2021-41511, demonstrating an authentication bypass in Lodging Reservation Management System 1.0 via crafted username/password inputs. The PoC includes a Burp Suite-captured HTTP request with the payload ' or 1 -- -.

Classification
Working Poc 95%
Attack Type
Sqli
Complexity
Trivial
Reliability
Reliable
Target: Lodging Reservation Management System v1.0
No auth needed
Prerequisites: Access to the admin login page · Burp Suite or similar intercepting proxy
devstral-2 · analyzed Feb 23, 2026 Full analysis →

References (7)

Core 7
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/Ni7inSharma/CVE-2021-41511
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
https://www.exploit-db.com/exploits/50372
Exploit, Third Party Advisory x_refsource_misc
https://streamable.com/9fq8uw
Exploit, Third Party Advisory x_refsource_misc
https://www.nu11secur1ty.com/2021/10/cve-2021-41511.html

Scores

CVSS v3 9.8
EPSS 0.0049
EPSS Percentile 66.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-89
Status published
Products (1)
lodging_reservation_management_system_project/lodging_reservation_management_system 1.0
Published Oct 04, 2021
Tracked Since Feb 18, 2026