CVE-2008-6540

mediumpriority · track · 31EPSS 0.025 · 84 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

2.48% (84th) EPSS

CVSS 5.1 · medium

Is it mine?

19 products

Check your exposure

Who says so?

3 sources

enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

DotNetNuke before 4.8.2, during installation or upgrade, does not warn the administrator when the default (1) ValidationKey and (2) DecryptionKey values cannot be modified in the web.config file, which allows remote attackers to bypass intended access restrictions by using the default keys.

cvss

Technical severity, 0–10. One row per scoring source.

5.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.1mediumAV:N/AC:H/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 4.9 · impact 6.4

v2.04.6mediumAV:N/AC:H/Au:N/C:P/I:P/A:P/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-264USprimaryCWE-453US

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-31465DotNetNuke 4.8.1 - Default 'ValidationKey' and 'DecriptionKey' Weak Encryptionfunctional · exploit_db

affected products (19)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
dnnsoftware dotnetnuke≤ 4.8.1nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 1.0.10dnvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 1.0.10envdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 1.0.6nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 1.0.7nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 1.0.8nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 1.0.9nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 2.1.1nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 2.1.2nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 3.0.11nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 3.0.7nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 3.0.8nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 3.1.0nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 3.3.5nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 4.0nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 4.3.5nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
dnnsoftware dotnetnuke= 4.5.2nvdUScpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
NuGet DotNetNuke.Core< 4.8.2osvUSpkg:nuget/DotNetNuke.Core

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-grw3-hjjm-5cjmDotNetNuke Default Machine Key Exposure2022-05-14ghsa · osvUS
DotNetNuke before 4.8.2, during installation or upgrade, does not warn the administrator when the default (1) ValidationKey and (2) DecryptionKey values cannot be modified in the web.config file, which allows remote attackers to bypass intended access restrictions by using the default keys.

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd osv NVD CVE.org MITRE

published 2009-03-30modified 2026-06-16

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references (12)

External citations — patches, advisories, analysis.

scry

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