CVE-2011-4449

Exp

actions/files/files.php in WikkaWiki 1.3.1 and 1.3.2, when INTRANET_MODE is enabled, supports file uploads for file extensions that are typically absent from an Apache HTTP Server TypesConfig file, which makes it easier for remote attackers to execute arbitrary PHP code by placing this code in a file whose name has multiple extensions, as demonstrated by a (1) .mm or (2) .vpp file.

Published: 2012-09-05 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4449 is rated High Exploit Risk (73.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.14%). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2011-4449

EDB-ID Source Kind Published Link
18865 exploit_db edb 2012-05-12 Exploit-DB ↗
18177 exploit_db edb 2011-11-30 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-4449

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 4.52% 4.14% -0.38%
2 2025-03-30 6.91% 4.52% -2.39%
3 2025-03-29 — 6.91% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4449

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-2011-4449

Affected software / configurations for CVE-2011-4449

Vendor Product Version Raw CPE
wikkawiki wikkawiki 1.3.1 cpe:2.3:a:wikkawiki:wikkawiki:1.3.1:*:*:*:*:*:*:*
wikkawiki wikkawiki 1.3.2 cpe:2.3:a:wikkawiki:wikkawiki:1.3.2:*:*:*:*:*:*:*

References for CVE-2011-4449

cvelogic Threat Intelligence