What is CVE-2022-38400?

CVE-2022-38400 is a medium-severity vulnerability in Synck Mailform Pro Cgi, classified under Information Disclosure. CVSS score: 5.9/10. Published 2022-09-08.

How severe is CVE-2022-38400?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Information disclosure in Synck Mailform Pro Cgi

CVE-2022-38400

Mailform Pro CGI 4.3.1 and earlier allow a remote unauthenticated attacker to obtain the user input data by having a use of the product to access a specially crafted URL.

Vulnerability class: Information Disclosure

Published 2022-09-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.015 (73.7th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.015 · change: +0.002

Affected products

Synck Mailform Pro Cgi
Synck Graphica Mailform Pro Cgi — versions 4.3.1 and earlier

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

www.synck.com/blogs/news/newsroom/detail_1661907555.html (Patch, Vendor Advisory)
www.synck.com/downloads/cgi-perl/mailformpro/index.html (Product)
www.synck.com/downloads/cgi-perl/mailformpro/feature_1381250709.html (Exploit, Vendor Advisory)
jvn.jp/en/jp/JVN34205166/index.html (Third Party Advisory)

Frequently asked questions

What is CVE-2022-38400?: CVE-2022-38400 is a medium-severity vulnerability in Synck Mailform Pro Cgi, classified under Information Disclosure. CVSS score: 5.9/10. Published 2022-09-08.
How severe is CVE-2022-38400?: Medium severity. CVSS v3 base score is 5.9 out of 10.