CVE-2021-47717

MEDIUM

IntelliChoice eFORCE Software Suite 2.5.9 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47717. PoCs published by LiquidWorm.

AI-analyzed exploit summary This is a writeup detailing a username enumeration vulnerability in IntelliChoice eFORCE Software Suite. The vulnerability allows an attacker to enumerate valid usernames via the 'ctl00$MainContent$UserName' POST parameter by observing different error messages for valid and invalid usernames.

Description

IntelliChoice eFORCE Software Suite 2.5.9 contains a username enumeration vulnerability that allows attackers to enumerate valid users by exploiting the 'ctl00$MainContent$UserName' POST parameter. Attackers can send requests with valid usernames to retrieve user information.

Exploits (1)

exploitdb WRITEUP
by LiquidWorm · textwebappsaspx
https://www.exploit-db.com/exploits/50164

This is a writeup detailing a username enumeration vulnerability in IntelliChoice eFORCE Software Suite. The vulnerability allows an attacker to enumerate valid usernames via the 'ctl00$MainContent$UserName' POST parameter by observing different error messages for valid and invalid usernames.

Classification
Writeup 100%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: IntelliChoice eFORCE Software Suite v2.5.9 and earlier versions
No auth needed
Prerequisites: Network access to the target application
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/50164
Various Sources product
https://www.eforcesoftware.com
Third Party Advisory third-party-advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5658.php

Scores

CVSS v4 6.9
EPSS 0.0030
EPSS Percentile 21.5%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-204
Status published
Products (1)
IntelliChoice/IntelliChoice eFORCE Software Suite 2.5.9.6
Published Dec 09, 2025
Tracked Since Feb 18, 2026