What is CVE-2021-36455?

CVE-2021-36455 is a high-severity vulnerability in Naviwebs Navigate Cms, classified under SQL Injection. CVSS score: 8.8/10. Published 2021-08-06.

How severe is CVE-2021-36455?

High severity. CVSS v3 base score is 8.8 out of 10.

SQL Injection in Naviwebs Navigate Cms

CVE-2021-36455

SQL Injection vulnerability in Naviwebs Navigate CMS 2.9 via the quicksearch parameter in \lib\packages\comments\comments.php.

Vulnerability class: SQL Injection

Published 2021-08-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (65.2th percentile), scored 2026-10-18.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Naviwebs Navigate Cms — versions 2.9

Weakness classification (CWE)

CWE-89 — SQL Injection

References

github.com/NavigateCMS/Navigate-CMS/issues/25 (Exploit, Third Party Advisory)
www.navigatecms.com/en/blog/development/navigate_cms_update_2_9_4 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-36455?: CVE-2021-36455 is a high-severity vulnerability in Naviwebs Navigate Cms, classified under SQL Injection. CVSS score: 8.8/10. Published 2021-08-06.
How severe is CVE-2021-36455?: High severity. CVSS v3 base score is 8.8 out of 10.