CVE-2021-4356: critical vulnerability in nmedia Frontend File Manager Plugin
Frontend File Manager <= 18.2 - Unauthenticated Arbitrary File Download
Published · Updated
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9epss 1.5%
exploitation probability
1.5%top 26% of all CVEs
observed exploitation
nono source reports it
The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Download
in versions up to, and including, 18.2. This is due to lacking authentication protections, capability checks, and sanitization, all on the wpfm_file_meta_update AJAX action. This makes it possible for unauthenticated attackers to download arbitrary files on the site, potentially leading to site takeover.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
nmedia · Frontend File Manager PluginRelated CVEs — nmedia Frontend File Manager Plugin
In the same product, most dangerous first.
CVE-2016-15042CRITICALFrontend File Manager < 4.0 & N-Media Post Front-end Form < 1.1 & - Arbitrary File UploadEPSS 5.7%CVE-2021-4368CRITICALFrontend File Manager <= 18.2 - Authenticated Settings Change leading to Arbitrary File UploadEPSS 1.9%CVE-2021-4359MEDIUMFrontend File Manager Plugin <= 18.2 - Unauthenticated Arbitrary Post DeletionEPSS 0.9%CVE-2021-4369MEDIUMFrontend File Manager <= 18.2 - Unauthenticated Content InjectionEPSS 0.8%CVE-2021-4365HIGHFrontend File Manager <= 18.2 - Unauthenticated Stored Cross-Site ScriptingEPSS 0.8%CVE-2021-4351MEDIUMFrontend File Manager <= 18.2 - Unauthenticated Post Meta ChangeEPSS 0.7%
References
https://blog.nintechnet.com/wordpress-frontend-file-manager-plugin-fixed-multiple-critical-vulnerabilities/https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2554359%40nmedia-user-file-uploader&new=2554359%40nmedia-user-file-uploader&sfp_email=&sfph_mail=https://www.wordfence.com/threat-intel/vulnerabilities/id/79e2011c-5e4d-4d02-831f-6b4dcfcaa51e?source=cve