CVE-2021-24223
The N5 Upload Form WordPress plugin through 1.0 suffers from an arbitrary file upload issue in page where a Form from the plugin is embed, as any file can be uploaded.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The N5 Upload Form WordPress plugin through 1.0 suffers from an arbitrary file upload issue in page where a Form from the plugin is embed, as any file can be uploaded. The uploaded filename might be hard to guess as it's generated with md5(uniqid(rand())), however, in the case of misconfigured servers with Directory listing enabled, accessing it is trivial.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.21% probability · 82th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- n5 upload form project/n5 upload form
- Source
- contact@wpscan.com
EPSS 2.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/jinhuang1102/CVE-ID-Reports/blob/12863f80ced5361e2e2c3f7209566ab3730aa37b/N5_upload.mdExploit, Third Party Advisory
- https://wpscan.com/vulnerability/d7a72183-0cd1-45de-b98b-2e295b27e5dbExploit, Third Party Advisory
- https://github.com/jinhuang1102/CVE-ID-Reports/blob/12863f80ced5361e2e2c3f7209566ab3730aa37b/N5_upload.mdExploit, Third Party Advisory
- https://wpscan.com/vulnerability/d7a72183-0cd1-45de-b98b-2e295b27e5dbExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.