What is CVE-2011-3203?

CVE-2011-3203 is a critical-severity vulnerability in Jcow Cms, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2020-01-14.

How severe is CVE-2011-3203?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Improper input validation in Jcow Cms

CVE-2011-3203

A Code Execution vulnerability exists the attachment parameter to index.php in Jcow CMS 4.x to 4.2 and 5.2 to 5.2.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2020-01-14 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.024 (83.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000

Affected products

Jcow Cms — versions 4.x to 4.2 and 5.x to 5.2
Jcow Cms

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.openwall.com/lists/oss-security/2011/08/30/6 (Exploit, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2011-3203?: CVE-2011-3203 is a critical-severity vulnerability in Jcow Cms, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2020-01-14.
How severe is CVE-2011-3203?: Critical severity. CVSS v3 base score is 9.8 out of 10.