CVE-2011-3383

Cross-site scripting (XSS) vulnerability in KENT-WEB WEB FORUM 5.1 and earlier allows remote attackers to inject arbitrary web script or HTML via vectors related to "the web page to be output."

Published: 2011-10-24 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2011-3383 is rated Low Risk (35.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.31%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2011-3383

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 2025-03-30 0.35% 0.31% -0.04%
2 2025-03-29 0.31% 0.35% +0.04%
3 2025-03-17 0.31%

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-3383

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N 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:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2011-3383

Affected software / configurations for CVE-2011-3383

Vendor Product Version Raw CPE
kent-web web_forum <= 5.1 cpe:2.3:a:kent-web:web_forum:*:*:*:*:*:*:*:*

References for CVE-2011-3383

URL Tags
http://jvn.jp/en/jp/JVN36684331/index.html Third Party Advisory VDB Entry
http://jvndb.jvn.jp/jvndb/JVNDB-2011-000080 Third Party Advisory VDB Entry
cvelogic Threat Intelligence