CVE-2006-7013

QueryString.php in Simple Machines Forum (SMF) 1.0.7 and earlier, and 1.1rc2 and earlier, allows remote attackers to more easily spoof the IP address and evade banning via a modified X-Forwarded-For HTTP header, which is preferred instead of other more reliable sources for the IP address. NOTE: the original researcher claims that the vendor has disputed this issue

Published: 2007-02-15 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-7013 is rated Moderate Risk (57.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.06%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-7013

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-11 1.02% 1.06% +0.04%
2 2025-10-04 0.78% 1.02% +0.23%
3 2025-09-16 — 0.78% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-7013

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2006-7013

OS Trackers for CVE-2006-7013

vendor priority summary link
alpine — CVE-2006-7013: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-7013

Affected software / configurations for CVE-2006-7013

Vendor Product Version Raw CPE
simple_machines simple_machines_forum <= 1.0.7 cpe:2.3:a:simple_machines:simple_machines_forum:*:*:*:*:*:*:*:*
simple_machines simple_machines_forum <= 1.1_rc2 cpe:2.3:a:simple_machines:simple_machines_forum:*:*:*:*:*:*:*:*

References for CVE-2006-7013

cvelogic Threat Intelligence