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CVE-2019-11233

24
FAUCET Score

CVE-2019-11233 is a high-severity information disclosure vulnerability affecting EXCELLENT INFOTEK BiYan versions 1.57 through 2.8. An unauthenticated attacker can leak sensitive user information, such as email addresses or telephone numbers, by sending a crafted request to the 'check_user_login_info.aspx' URI. This vulnerability has a CVSS score of 7.5, indicating a high impact on confidentiality with no authentication or user interaction required. While no public exploit code or active exploitation has been observed, and community discussion is minimal, organizations using affected BiYan versions should be aware of this potential data leak risk.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.57, <= 2.8CPE matchmatch criteria
cpe:2.3:a:eic:biyan:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.50%
Probability of exploitation in next 30 days
EPSS Percentile
71.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0150 is in the 53rd percentile among its peer group of 51,455 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

gist.github.com / keniver/dd27ba44d0aef4318551e647d927242f
ExploitThird Party Advisory