CVE-2021-47717 json
IntelliChoice eFORCE Software Suite Username Enumeration
published 2025-12-09 10 mo ago modified 2026-06-17 4 mo ago also EUVD-2021-34728
- cvss
- 6.9
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 10 mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- exploit-db.com https://www.exploit-db.com/exploits/50164 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | 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 |
| CNA | 4.0 | 6.9 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- IntelliChoice IntelliChoice eFORCE Software Suite
Classification
- Weakness
-
- CWE-204 Observable Response Discrepancy
References
-
exploit-db.com
/exploits/50164
exploit
-
eforcesoftware.com
product
-
zeroscience.mk
/en/vulnerabilities/ZSL-2021-5658.php
third-party-advisory
-
vulncheck.com
/advisories/intellichoice-eforce-software-suite-username-enumeration
third-party-advisory
Sources
- CVE List CVE-2021-47717
- NVD CVE-2021-47717
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