What is CVE-2020-11585?

CVE-2020-11585 is a medium-severity vulnerability in Dnnsoftware Dotnetnuke, classified under Use of Insufficiently Random Values. CVSS score: 4.3/10. Published 2020-04-06.

How severe is CVE-2020-11585?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Dnnsoftware Dotnetnuke

CVE-2020-11585

There is an information disclosure issue in DNN (formerly DotNetNuke) 9.5 within the built-in Activity-Feed/Messaging/Userid/ Message Center module. A registered user is able to enumerate any file in the Admin File Manager (other than ones contained in a secure folder) by sending themselves a message with the file attached, e.g., by using an arbitrary small integer value in the fileIds parameter.

Published 2020-04-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (50.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: -0.000

Affected products

Dnnsoftware Dotnetnuke — versions 9.5.0

Weakness classification (CWE)

References

neff.blog/2020/04/04/dotnetnuke-9-5-file-path-information-disclosure/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-11585?: CVE-2020-11585 is a medium-severity vulnerability in Dnnsoftware Dotnetnuke, classified under Use of Insufficiently Random Values. CVSS score: 4.3/10. Published 2020-04-06.
How severe is CVE-2020-11585?: Medium severity. CVSS v3 base score is 4.3 out of 10.