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Vulnerability record · CVE-2021-44848 · published 13 December 2021

CVE-2021-44848: Cybelesoft thinfinity virtualui observable discrepancy vulnerability

Cybelesoft · Thinfinity Virtualui

In Cibele Thinfinity VirtualUI before 3.0, /changePassword returns different responses for invalid authentication requests depending on whether the username exists.

5.3 CVSS 3.1 Medium EPSS 23% · top 2.3% CWE-203 · Observable discrepancy
5.3CVSS 3.1 base score, v2 5.0
23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

In Cibele Thinfinity VirtualUI before 3.0, /changePassword returns different responses for invalid authentication requests depending on whether the username exists.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/165327/Cibele-Thinfinity-VirtualUI-2.5.41.0-User-Enumeration.html ExploitThird Party AdvisoryVDB Entry
https://github.com/cybelesoft/virtualui/issues/1 Issue TrackingThird Party Advisory
http://packetstormsecurity.com/files/165327/Cibele-Thinfinity-VirtualUI-2.5.41.0-User-Enumeration.html ExploitThird Party AdvisoryVDB Entry
https://github.com/cybelesoft/virtualui/issues/1 Issue TrackingThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-45092Cybelesoft thinfinity virtualui vulnerabilityThinfinity VirtualUI before 3.0 has functionality in /lab.html reachable by default that could allow IFRAME injection via the vpath parameter.EPSS 41%7.5CVE-2021-46354Cybelesoft thinfinity virtualui exposure of resource to wrong sphere vulnerabilityThinfinity VirtualUI 2.1.28.0, 2.1.32.1 and 2.5.26.2, fixed in version 3.0 is affected by an information disclosure vulnerability in the parameter "A…EPSS 13%6.5CVE-2019-16384Cybelesoft thinfinity virtualui path traversal vulnerabilityCybele Thinfinity VirtualUI 2.5.17.2 allows ../ path traversal that can be used for data exfiltration. This enables files outside of the web director…EPSS 1.1%6.1CVE-2019-16385Cybelesoft thinfinity virtualui injection vulnerabilityCybele Thinfinity VirtualUI 2.5.17.2 allows HTTP response splitting via the mimetype parameter within a PDF viewer request, as demonstrated by an exa…EPSS 0.80%5.3CVE-2021-44554Cybelesoft thinfinity virtualui observable discrepancy vulnerabilityThinfinity VirtualUI before 3.0 allows a malicious actor to enumerate users registered in the OS (Windows) through the /changePassword URI. By access…EPSS 1.0%5.3CVE-2024-39891Twilio Authy API phone number enumeration via observable discrepancyAn unauthenticated endpoint in the Twilio Authy API, reachable through Authy Android before 25.1.0 and Authy iOS before 26.1.0, accepted streams of p…KEVEPSS 1.7%analysed

Source: NIST National Vulnerability Database (record CVE-2021-44848), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.