What is CVE-2021-37777?

CVE-2021-37777 is a high-severity vulnerability in Gilacms Gila Cms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2021-10-04.

How severe is CVE-2021-37777?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Gilacms Gila Cms

CVE-2021-37777

Gila CMS 2.2.0 is vulnerable to Insecure Direct Object Reference (IDOR). Thumbnails uploaded by one site owner are visible by another site owner just by knowing the other site name and fuzzing for picture names. This leads to sensitive information disclosure.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2021-10-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.017 (76.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Gilacms Gila Cms — versions 2.2.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

www.navidkagalwalla.com/gila-cms-vulnerabilities (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-37777?: CVE-2021-37777 is a high-severity vulnerability in Gilacms Gila Cms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2021-10-04.
How severe is CVE-2021-37777?: High severity. CVSS v3 base score is 7.5 out of 10.