CVE-2020-5186 json
DNN XSS Vulnerability
published 2020-02-24 6 y ago modified 2026-06-17 4 mo ago also GHSA-9phr-h5mx-4fp6 , EUVD-2022-3424
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
DNN (formerly DotNetNuke) through 9.4.4 allows XSS (issue 1 of 2).
Exploit prediction
0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- packetstormsecurity.com https://packetstormsecurity.com/files/156483/DotNetNuke-CMS-9.5.0-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| GitHub | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | DotNetNuke.Core | <=9.4.4 |
no fix listed |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
packetstormsecurity.com
/files/156483/DotNetNuke-CMS-9.5.0-Cross-Site-Scripting.html
web, exploit, third-party-advisory, vdb-entry
-
github.com
/dnnsoftware/Dnn.Platform/releases
release-notes, third-party-advisory
- medium.com /%40SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
-
nvd.nist.gov
/vuln/detail/CVE-2020-5186
advisory
-
medium.com
/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
web
Sources
- CVE List CVE-2020-5186
- GitHub Advisory GHSA-9phr-h5mx-4fp6
- NVD CVE-2020-5186
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.