Description
WordPress Plugin WP Upload Restriction is prone to multiple vulnerabilities, including cross-site scripting and security bypass vulnerabilities. Exploiting these issues may allow an attacker to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site, to steal cookie-based authentication credentials, or to perform otherwise restricted actions and subsequently delete custom extensions. WordPress Plugin WP Upload Restriction version 2.2.3 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 2.2.8 or latest
References
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34625
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34626
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34627
https://plugins.svn.wordpress.org/wp-upload-restriction/trunk/readme.txt
Related Vulnerabilities
SugarCRM Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2019-17308)
Oracle Database Server CVE-2012-0510 Vulnerability (CVE-2012-0510)
MODX Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2014-8775)
WordPress Plugin SEO Redirection-301 Redirect Manager Cross-Site Scripting (7.3)