SQL Injection in Instantsoft Instantcms

CVE-2013-6839

SQL injection vulnerability in InstantSoft InstantCMS 1.10.3 and earlier allows remote attackers to execute arbitrary SQL commands via the orderby parameter to catalog/[id].

Vulnerability class: SQL Injection

Published 2013-12-13 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.013 (68.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Instantsoft Instantcms

Weakness classification (CWE)

CWE-89 — SQL Injection

References

secunia.com/advisories/56041 (Vendor Advisory, third-party-advisory)
www.instantcms.ru/novosti/security-update-1-10-3.html (Patch, Vendor Advisory)
www.htbridge.com/advisory/HTB23185 (Exploit)
archives.neohapsis.com/archives/bugtraq/2013-12/0049.html (mailing-list, Exploit)
www.securityfocus.com/bid/63842 (vdb-entry)