What is CVE-2026-56721?

CVE-2026-56721 is a high-severity vulnerability in Owen2345 Camaleoncms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2026-08-11.

How severe is CVE-2026-56721?

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

Auth bypass in Owen2345 Camaleoncms

CVE-2026-56721

CamaleonCMS version 2.9.2 and earlier contains a privilege escalation vulnerability via insecure direct object reference (IDOR) that allows authenticated low-privileged attackers to overwrite any user's credentials by exploiting a paramete…

Vulnerability class: IDOR (Insecure Direct Object Reference)

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.

Affected products

Owen2345 Camaleoncms — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-56721?: CVE-2026-56721 is a high-severity vulnerability in Owen2345 Camaleoncms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2026-08-11.
How severe is CVE-2026-56721?: High severity. CVSS v3 base score is 8.8 out of 10.