CVE-2013-4390

Open redirect vulnerability in the AbstractAuthenticationFormServlet in the Auth Core (org.apache.sling.auth.core) bundle before 1.1.4 in Apache Sling allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the resource parameter, related to "a custom login form and XSS."

Published: 2013-10-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4390 is rated Moderate Risk (55/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.06%). EPSS rose +1.73% over the last day, indicating growing attacker interest. 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-2013-4390

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 1.32% 3.06% +1.73%
2 2025-03-30 1.63% 1.32% -0.30%
3 2025-03-29 — 1.63% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4390

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 4.9 [email protected]

Weakness enumeration for CVE-2013-4390

GitHub Security Advisory for CVE-2013-4390

GHSA-j7f2-cqvq-5jcf · Severity: medium · Ecosystem: maven — Apache Sling Auth Core bundle vulnerable to Open Redirection

Affected software / configurations for CVE-2013-4390

Vendor Product Version Raw CPE
apache sling — cpe:2.3:a:apache:sling:*:*:*:*:*:*:*:*
apache sling_auth_core_component <= 1.1.2 cpe:2.3:a:apache:sling_auth_core_component:*:*:*:*:*:*:*:*
apache sling_auth_core_component 1.0.2 cpe:2.3:a:apache:sling_auth_core_component:1.0.2:*:*:*:*:*:*:*
apache sling_auth_core_component 1.0.4 cpe:2.3:a:apache:sling_auth_core_component:1.0.4:*:*:*:*:*:*:*
apache sling_auth_core_component 1.0.6 cpe:2.3:a:apache:sling_auth_core_component:1.0.6:*:*:*:*:*:*:*
apache sling_auth_core_component 1.1.0 cpe:2.3:a:apache:sling_auth_core_component:1.1.0:*:*:*:*:*:*:*

References for CVE-2013-4390

cvelogic Threat Intelligence