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.NET
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Not in CISA KEV
MEDIUM severity

CVE-2013-7335 — DotNetNuke.Core

MEDIUM

CVE-2013-7335 is a medium-severity (CVSS 4) Improper Input Validation vulnerability in DotNetNuke.Core. A fix is available for DotNetNuke.Core — see the affected versions and patch details below.

DotNetNuke (DNN) Open redirect vulnerability

Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.2%probability of exploitation in next 30 days
Lower Risk-0.01%
Lower risk than most CVEs67th percentile — riskier than 67% of all scored CVEsHighest risk
0.00%0.56%1.12%1.68%0.3%1.2%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
.NETDotNetNuke.Core.NETDotNetNuke.Core

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.

Description

Open redirect vulnerability in DotNetNuke (DNN) before 6.2.9 and 7.x before 7.1.1 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
.NETNuGetDotNetNuke.Coreall versions6.2.9dotnet add package DotNetNuke.Core --version 6.2.9
.NETNuGetDotNetNuke.Core≥ 7.0&&< 7.1.17.1.1dotnet add package DotNetNuke.Core --version 7.1.1

Affected Products

1 product · 65 configurations
Application
dotnetnukednnsoftware
≤ 6.2.8
64 versions
1.0.61.0.71.0.81.0.91.0.10d1.0.10e2.1.12.1.23.0.73.0.83.0.113.1.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for DotNetNuke.Core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update DotNetNuke.Core to 6.2.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-7335 is resolved across your whole dependency graph.

  3. Workarounds

    Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.

Frequently Asked Questions

Open redirect vulnerability in DotNetNuke (DNN) before 6.2.9 and 7.x before 7.1.1 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.
O3 Security · Impact-Aware SCA

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CVE-2013-7335: DotNetNuke — Fixed in 6.2.9