What is CVE-2018-16608?

CVE-2018-16608 is a high-severity vulnerability in Monstra, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2018-09-10.

How severe is CVE-2018-16608?

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

Auth bypass in Monstra

CVE-2018-16608

In Monstra CMS 3.0.4, an attacker with 'Editor' privileges can change the password of the administrator via an admin/index.php?id=users&action=edit&user_id=1, Insecure Direct Object Reference (IDOR).

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2018-09-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (67.1th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Monstra — versions 3.0.4

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

github.com/monstra-cms/monstra/issues/453 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-16608?: CVE-2018-16608 is a high-severity vulnerability in Monstra, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2018-09-10.
How severe is CVE-2018-16608?: High severity. CVSS v3 base score is 8.8 out of 10.