CVE-2011-4715

Exp

Directory traversal vulnerability in cgi-bin/koha/mainpage.pl in Koha 3.4 before 3.4.7 and 3.6 before 3.6.1, and LibLime Koha 4.2 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the KohaOpacLanguage cookie to cgi-bin/opac/opac-main.pl, related to Output.pm.

Published: 2011-12-08 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4715 is rated High Exploit Risk (66.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 7.79%, 92th percentile). 4 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-2011-4715

EDB-ID Source Kind Published Link
18153 exploit_db edb 2011-11-24 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-4715

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 2026-03-27 8.05% 7.79% -0.26%
2 2026-01-12 8.82% 8.05% -0.77%
3 2025-10-29 — 8.82% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4715

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N 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:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2011-4715

Affected software / configurations for CVE-2011-4715

Vendor Product Version Raw CPE
koha liblime_koha <= 4.2 cpe:2.3:a:koha:liblime_koha:*:*:*:*:*:*:*:*
koha koha 3.06.00.000 cpe:2.3:a:koha:koha:3.06.00.000:*:*:*:*:*:*:*
koha koha 3.04.00 cpe:2.3:a:koha:koha:3.04.00:*:*:*:*:*:*:*
koha koha 3.04.01 cpe:2.3:a:koha:koha:3.04.01:*:*:*:*:*:*:*
koha koha 3.04.02 cpe:2.3:a:koha:koha:3.04.02:*:*:*:*:*:*:*
koha koha 3.04.03 cpe:2.3:a:koha:koha:3.04.03:*:*:*:*:*:*:*
koha koha 3.04.04 cpe:2.3:a:koha:koha:3.04.04:*:*:*:*:*:*:*
koha koha 3.04.05 cpe:2.3:a:koha:koha:3.04.05:*:*:*:*:*:*:*
koha koha 3.04.06 cpe:2.3:a:koha:koha:3.04.06:*:*:*:*:*:*:*

References for CVE-2011-4715

cvelogic Threat Intelligence