Auth bypass in Mambo Open Source

CVE-2007-4203

Session fixation vulnerability in Mambo 4.6.2 CMS allows remote attackers to hijack web sessions by setting the Cookie parameter.

Vulnerability class: Broken Authentication

Published 2007-08-08 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 9.3 (High). Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.019 (79.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

Mambo Open Source — versions 4.6.2

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.securityfocus.com/archive/1/475241/100/0/threaded (mailing-list)
securityreason.com/securityalert/2970 (third-party-advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/35744 (vdb-entry)
osvdb.org/42514 (vdb-entry)