CVE-2011-4450

Exp

Directory traversal vulnerability in handlers/files.xml/files.xml.php in WikkaWiki 1.3.1 and 1.3.2 allows remote attackers to read or delete arbitrary files via a non-initial .. (dot dot) in the file parameter, as demonstrated by the /../../wikka.config.php pathname in a download action.

Published: 2012-09-05 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4450 is rated High Exploit Risk (67.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.70%). 2 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-2011-4450

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

Exploit prediction scoring system (EPSS) score for CVE-2011-4450

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 2026-05-07 9.43% 4.70% -4.73%
2 2026-02-10 8.59% 9.43% +0.84%
3 2025-03-30 — 8.59% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4450

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/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:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2011-4450

Affected software / configurations for CVE-2011-4450

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-2011-4450

cvelogic Threat Intelligence