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CVE-2021-45092

72
FAUCET Score

CVE-2021-45092 describes a critical IFRAME injection vulnerability in Thinfinity VirtualUI versions prior to 3.0, specifically within the /lab.html component. This flaw allows an unauthenticated attacker to inject arbitrary IFRAME content due to improper handling of the vpath parameter. With a CVSS score of 9.8 (Critical), exploitation requires no user interaction and can lead to complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, public exploit code exists on ExploitDB and Nuclei templates are available, indicating a high potential for exploitation despite limited community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.0CPE matchmatch criteria
cpe:2.3:a:cybelesoft:thinfinity_virtualui:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
39.97%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-45092 · Dec 18, 2021
ExploitDB: EDB-50770 · Feb 21, 2022
This CVE's current EPSS score of 0.3997 is in the 96th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/166068/Thinfinity-VirtualUI-2.5.41.0-IFRAME-Injection.html
Third Party AdvisoryVDB Entry
github.com / cybelesoft/virtualui/issues/2
Issue TrackingThird Party Advisory