CVE-2011-4173

Cross-site request forgery (CSRF) vulnerability in Simple Machines Forum (SMF) 2.x before 2.0.1 allows remote attackers to hijack the authentication of administrators or moderators via vectors involving image files, a different vulnerability than CVE-2011-3615. NOTE: some of these details are obtained from third party information.

Published: 2011-10-24 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4173 is rated Moderate Risk (42.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.59%). 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-2011-4173

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 2026-06-15 0.14% 0.59% +0.45%
2 2025-03-17 0.16% 0.14% -0.02%
3 2024-09-17 — 0.16% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4173

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2011-4173

Affected software / configurations for CVE-2011-4173

Vendor Product Version Raw CPE
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:*:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:beta1:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:beta2:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:beta2.1:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:beta3:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:beta3.1:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:beta4:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:rc1:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:rc1.2:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:rc2:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:rc3:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:rc4:*:*:*:*:*:*
simplemachines smf 2.0 cpe:2.3:a:simplemachines:smf:2.0:rc5:*:*:*:*:*:*

References for CVE-2011-4173

cvelogic Threat Intelligence