Vulnerability in Echatserver Easy Chat Server

CVE-2017-9557

register.ghp in EFS Software Easy Chat Server versions 2.0 to 3.1 allows remote attackers to discover passwords by sending the username parameter in conjunction with an empty password parameter, and reading the HTML source code of the response.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.017 (75.9th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2017-9557: held from 0.017 to 0.017.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-9557?
CVE-2017-9557 is a high-severity vulnerability in Echatserver Easy Chat Server, classified under Insufficiently Protected Credentials. CVSS score: 7.5/10. Published 2017-06-12.
How severe is CVE-2017-9557?
High severity. CVSS v3 base score is 7.5 out of 10.