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    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 above to upload malicious files that can be used to obtain remote code execution, in versions up to and including 5.3.2.

    Published:Nov 17, 2021
    Last Modified:Nov 21, 2024
    EPS:Nov 17, 2021
    EPSS Score:0.82414
    CVSS Score:8.8

    Affected Products

    Vendor
    Wordpress Popular Posts Project
    Product
    Wordpress Popular Posts

    Exploits

    http://packetstormsecurity.com/files/165376/WordPress-Popular-Posts-5.3.2-Remote-Code-Execution.htmlhttps://blog.nintechnet.com/improper-input-validation-fixed-in-wordpress-popular-posts-plugin/http://packetstormsecurity.com/files/165376/WordPress-Popular-Posts-5.3.2-Remote-Code-Execution.htmlhttps://blog.nintechnet.com/improper-input-validation-fixed-in-wordpress-popular-posts-plugin/https://www.exploit-db.com/exploits/50129https://github.com/samiba6/CVE-2021-42362https://github.com/simonecris/CVE-2021-42362-PoC

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

    References

    http://packetstormsecurity.com/files/165376/WordPress-Popular-Posts-5.3.2-Remote-Code-Execution.html
    https://blog.nintechnet.com/improper-input-validation-fixed-in-wordpress-popular-posts-plugin/
    https://github.com/cabrerahector/wordpress-popular-posts/commit/d9b274cf6812eb446e4103cb18f69897ec6fe601
    https://plugins.trac.wordpress.org/changeset/2542638/wordpress-popular-posts/trunk/src/Image.php
    https://wpscan.com/vulnerability/bd4f157c-a3d7-4535-a587-0102ba4e3009
    https://www.wordfence.com/vulnerability-advisories/#CVE-2021-42362
    http://packetstormsecurity.com/files/165376/WordPress-Popular-Posts-5.3.2-Remote-Code-Execution.html
    https://blog.nintechnet.com/improper-input-validation-fixed-in-wordpress-popular-posts-plugin/
    https://github.com/cabrerahector/wordpress-popular-posts/commit/d9b274cf6812eb446e4103cb18f69897ec6fe601
    https://plugins.trac.wordpress.org/changeset/2542638/wordpress-popular-posts/trunk/src/Image.php
    https://wpscan.com/vulnerability/bd4f157c-a3d7-4535-a587-0102ba4e3009
    https://www.wordfence.com/vulnerability-advisories/#CVE-2021-42362

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High