Arbitrary file upload in Wordpress Popular Posts
CVE-2021-42362
The WordPress Popular Posts WordPress plugin is vulnerable to arbitrary file uploads due to insufficient input file type validation found in the ~/src/Image.php file which makes it possible for attackers with contributor level access and a…
Vulnerability class: Unrestricted File Upload
EPSS: 0.798 (99.6th 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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Exploit, Third Party Advisory, x_refsource_MISC)
- security@wordfence.com (Third Party Advisory, x_refsource_MISC)
- security@wordfence.com (Patch, Third Party Advisory, x_refsource_MISC)
- security@wordfence.com (Third Party Advisory, x_refsource_MISC)
- security@wordfence.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- security@wordfence.com (patch)
Frequently asked questions
- What is CVE-2021-42362?
- CVE-2021-42362 is a high-severity vulnerability in Wordpress Popular Posts, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2021-11-17.
- How severe is CVE-2021-42362?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-42362 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.