What is CVE-2016-7817?

CVE-2016-7817 is a medium-severity vulnerability in Lemon-S PHP Simple Keitai Chat, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-06-09.

How severe is CVE-2016-7817?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Lemon-S PHP Simple Keitai Chat

CVE-2016-7817

Cross-site scripting vulnerability in Simple keitai chat 2.0 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-06-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Lemon-S PHP Simple Keitai Chat — versions 2.0 and earlier
Simple Keitai Chat Project

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

jvn.jp/en/jp/JVN05493467/index.html (VDB Entry, Third Party Advisory, third-party-advisory)
www.securityfocus.com/bid/94537 (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2016-7817?: CVE-2016-7817 is a medium-severity vulnerability in Lemon-S PHP Simple Keitai Chat, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-06-09.
How severe is CVE-2016-7817?: Medium severity. CVSS v3 base score is 6.1 out of 10.