Arbitrary file upload in Classyfrieds Project
CVE-2021-24253
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.
Vulnerability class: Unrestricted File Upload
EPSS: 0.019 (78.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Classyfrieds_project Classyfrieds
- Unknown Classyfrieds — versions 3.8
Weakness classification (CWE)
Public proof-of-concept exploits
References
- contact@wpscan.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
- contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-24253?
- CVE-2021-24253 is a high-severity vulnerability in Classyfrieds Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2021-05-06.
- How severe is CVE-2021-24253?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-24253 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.