CVE-2021-47717

6.9 mediumEPSS 0.4%

Medium (6.9). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

6.9 medium

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-31)
CWE: CWE-204
Published: 2025-12-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://www.eforcesoftware.com
https://www.exploit-db.com/exploits/50164
https://www.vulncheck.com/advisories/intellichoice-eforce-software-suite-username-enumeration
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5658.php

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