What is CVE-2021-36605?

CVE-2021-36605 is a medium-severity vulnerability in Engineercms Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-30.

How severe is CVE-2021-36605?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Engineercms Project

CVE-2021-36605

engineercms 1.03 is vulnerable to Cross Site Scripting (XSS). There is no escaping in the nickname field on the user list page. When viewing this page, the JavaScript code will be executed in the user's browser.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-07-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Engineercms Project — versions 1.03

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/3xxx/engineercms/issues/52 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-36605?: CVE-2021-36605 is a medium-severity vulnerability in Engineercms Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-30.
How severe is CVE-2021-36605?: Medium severity. CVSS v3 base score is 5.4 out of 10.