What is CVE-2018-0645?

CVE-2018-0645 is a critical-severity vulnerability in Bit-Part Mtappjquery, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2018-09-07.

How severe is CVE-2018-0645?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Bit-Part Mtappjquery

CVE-2018-0645

MTAppjQuery 1.8.1 and earlier allows remote PHP code execution via unspecified vectors.

Vulnerability class: Unrestricted File Upload

Published 2018-09-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.024 (83.5th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000

Affected products

Bit-Part Mtappjquery
Bit Part Llc Mtappjquery — versions 1.8.1 and earlier

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

www.tinybeans.net/blog/2015/06/26-230919.html (Vendor Advisory)
bit-part.net/news/2018/07/mtappjquery-20180717.html (Third Party Advisory)
jvn.jp/en/jp/JVN62423700/index.html (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2018-0645?: CVE-2018-0645 is a critical-severity vulnerability in Bit-Part Mtappjquery, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2018-09-07.
How severe is CVE-2018-0645?: Critical severity. CVSS v3 base score is 9.8 out of 10.