What is CVE-2026-57676?

CVE-2026-57676 is a medium-severity vulnerability in Matteo Manna Simple User Avatar, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-06-29.

How severe is CVE-2026-57676?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Matteo Manna Simple User Avatar

CVE-2026-57676

Authorization Bypass Through User-Controlled Key vulnerability in Matteo Manna Simple User Avatar allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Simple User Avatar: from n/a through 4.9.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (8.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Matteo Manna Simple User Avatar — versions n/a

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-57676?: CVE-2026-57676 is a medium-severity vulnerability in Matteo Manna Simple User Avatar, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-06-29.
How severe is CVE-2026-57676?: Medium severity. CVSS v3 base score is 4.3 out of 10.