CVE-2021-20723

6.1 mediumEPSS 0.8%

Medium (6.1) in mailform01 project mailform01. EPSS 0.8% chance of exploitation in the next 30 days.

Reflected cross-site scripting vulnerability in [MailForm01] free edition (versions which the last updated date listed at the top of descriptions in the program file is from 2014 December 12 to 2018 July 27) allows a remote attacker to inject an arbitrary script via unspecified vectors.

Severity

CVSS 3.1

6.1 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-05-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mailform01_project:mailform01

References

https://jvn.jp/en/jp/JVN53910556/index.html
https://www.php-factory.net/mail/01.php
https://jvn.jp/en/jp/JVN53910556/index.html
https://www.php-factory.net/mail/01.php

Check your stack JSON