CVE-2006-4256

index.php in Horde Application Framework before 3.1.2 allows remote attackers to include web pages from other sites, which could be useful for phishing attacks, via a URL in the url parameter, aka "cross-site referencing." NOTE: some sources have referred to this issue as XSS, but it is different than classic XSS.

Published: 2006-08-21 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-4256 is rated Moderate Risk (44.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.12%). 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-2006-4256

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 2026-03-19 1.03% 1.12% +0.09%
2 2025-09-14 0.79% 1.03% +0.24%
3 2025-03-30 — 0.79% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-4256

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-2006-4256

OS Trackers for CVE-2006-4256

vendor priority summary link
ubuntu medium CVE-2006-4256 medium priority: Ubuntu including 1 source packages (horde3), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): released 7, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2006-4256

Affected software / configurations for CVE-2006-4256

Vendor Product Version Raw CPE
horde application_framework 3.0 cpe:2.3:a:horde:application_framework:3.0:*:*:*:*:*:*:*
horde application_framework 3.0.1 cpe:2.3:a:horde:application_framework:3.0.1:*:*:*:*:*:*:*
horde application_framework 3.0.2 cpe:2.3:a:horde:application_framework:3.0.2:*:*:*:*:*:*:*
horde application_framework 3.0.3 cpe:2.3:a:horde:application_framework:3.0.3:*:*:*:*:*:*:*
horde application_framework 3.0.4 cpe:2.3:a:horde:application_framework:3.0.4:*:*:*:*:*:*:*
horde application_framework 3.0.4_rc1 cpe:2.3:a:horde:application_framework:3.0.4_rc1:*:*:*:*:*:*:*
horde application_framework 3.0.4_rc2 cpe:2.3:a:horde:application_framework:3.0.4_rc2:*:*:*:*:*:*:*
horde application_framework 3.0.6 cpe:2.3:a:horde:application_framework:3.0.6:*:*:*:*:*:*:*
horde application_framework 3.0.7 cpe:2.3:a:horde:application_framework:3.0.7:*:*:*:*:*:*:*
horde application_framework 3.0.8 cpe:2.3:a:horde:application_framework:3.0.8:*:*:*:*:*:*:*
horde application_framework 3.0.9 cpe:2.3:a:horde:application_framework:3.0.9:*:*:*:*:*:*:*
horde application_framework 3.1 cpe:2.3:a:horde:application_framework:3.1:*:*:*:*:*:*:*
horde application_framework 3.1.1 cpe:2.3:a:horde:application_framework:3.1.1:*:*:*:*:*:*:*

References for CVE-2006-4256

cvelogic Threat Intelligence