What is CVE-2018-0513?

CVE-2018-0513 is a medium-severity vulnerability in Mtssb.mt-Systems Simple Booking, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-02-08.

How severe is CVE-2018-0513?

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

XSS in Mtssb.mt-Systems Simple Booking

CVE-2018-0513

Cross-site scripting vulnerability in MTS Simple Booking C, MTS Simple Booking Business version 1.28.0 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-02-08 · 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: 0.008 (53.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Mtssb.mt-Systems Simple Booking
Mt Systems Co., Ltd. Mts Simple Booking Business — versions version 1.28.0 and earlier
Mt Systems Co., Ltd. Mts Simple Booking C — versions all versions

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

jvn.jp/en/jp/JVN99312352/index.html (Third Party Advisory, third-party-advisory)
mtssb.mt-systems.jp/jvn99312352/ (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2018-0513?: CVE-2018-0513 is a medium-severity vulnerability in Mtssb.mt-Systems Simple Booking, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-02-08.
How severe is CVE-2018-0513?: Medium severity. CVSS v3 base score is 6.1 out of 10.