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: 0.824 (99.2th 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
- Wordpress Popular Posts — versions 0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- blog.nintechnet.com/improper-input-validation-fixed-in-wordpress-popular-posts-… (x_refsource_MISC)
- www.wordfence.com/vulnerability-advisories/ (x_refsource_MISC)
- plugins.trac.wordpress.org/changeset/2542638/wordpress-popular-posts/trunk/src/… (x_refsource_MISC)
- wpscan.com/vulnerability/bd4f157c-a3d7-4535-a587-0102ba4e3009 (x_refsource_MISC)
- packetstormsecurity.com/files/165376/WordPress-Popular-Posts-5.3.2-Remote-Code-… (x_refsource_MISC)
- github.com/cabrerahector/wordpress-popular-posts/commit/d9b274cf6812eb446e4103c… (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.