CVE-2021-24253
This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.91%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.91% probability · 80th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- classyfrieds project/classyfrieds
- Source
- contact@wpscan.com
EPSS 1.9% 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/master/classyfrieds.mdExploit, Third Party Advisory
- https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079Exploit, Third Party Advisory
- https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.mdExploit, Third Party Advisory
- https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.