VULNERABILITY INTELLIGENCE
CVE-2021-42362
CVSS score8.8 HIGH
EPSS probability79.82%
CISA KEVNot currently listed
Published2021-11-17
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
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 above to upload malicious files that can be used to obtain remote code execution, in versions up to and including 5.3.2.
Weakness classification
- security@wordfence.com: CWE-434
Primary references
- security@wordfence.com — Exploit, Third Party Advisory, VDB Entry
- security@wordfence.com — Exploit, Third Party Advisory
- security@wordfence.com
- security@wordfence.com — Patch, Third Party Advisory
- security@wordfence.com — Third Party Advisory
- security@wordfence.com — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory