CVE-2020-5187 json
DNN Path Traversal via Zip Slip
published 6y ago modified 4mo ago also GHSA-4qf5-7xc2-wqpg , EUVD-2022-2427
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.4%
- EPSS 2.4% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
DNN (formerly DotNetNuke) through 9.4.4 allows Path Traversal (issue 2 of 2).
Patch / fix
- nuget DotNetNuke.Core 9.5.0
Is CVE-2020-5187 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
2.39% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- packetstormsecurity.com http://packetstormsecurity.com/files/156489/DotNetNuke-CMS-9.4.4-Zip-Directory-Traversal.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | DotNetNuke.Core | <9.5.0 |
9.5.0 |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
packetstormsecurity.com
/files/156489/DotNetNuke-CMS-9.4.4-Zip-Directory-Traversal.html
web, exploit, third-party-advisory, vdb-entry
-
github.com
/dnnsoftware/Dnn.Platform/releases
web, release-notes, third-party-advisory
- medium.com /%40SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
-
nvd.nist.gov
/vuln/detail/CVE-2020-5187
advisory
-
medium.com
/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175
web
Sources
- CVE List CVE-2020-5187
- GitHub Advisory GHSA-4qf5-7xc2-wqpg
- NVD CVE-2020-5187
Fencer Intel 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.