CVE-2020-22721 json
A File Upload Vulnerability in PNotes - Andrey Gruber PNotes.NET v3.8.1.2 allows a local attacker to execute arbitrary code via the Miscell…
published 2020-08-14 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-15480
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
A File Upload Vulnerability in PNotes - Andrey Gruber PNotes.NET v3.8.1.2 allows a local attacker to execute arbitrary code via the Miscellaneous " External Programs by uploading the malicious .exe file to the external program.
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- syhack.wordpress.com https://syhack.wordpress.com/2020/04/18/pnotes-insecure-file-upload-vulnerability-code-execution/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
-
syhack.wordpress.com
/2020/04/18/pnotes-insecure-file-upload-vulnerability-code-execution/
exploit, third-party-advisory
Sources
- CVE List CVE-2020-22721
- NVD CVE-2020-22721
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