Description

WordPress Plugin Simple 301 Redirects by BetterLinks is prone to multiple security bypass vulnerabilities. Exploiting these issues may allow attackers to perform otherwise restricted actions and subsequently set redirects that would deny access to the site, or install and activate arbitrary plugins. WordPress Plugin Simple 301 Redirects by BetterLinks versions starting from 2.0.0 and up to (and including) 2.0.3 are vulnerable.

Remediation

Update to plugin version 2.0.4 or latest

References

https://www.wordfence.com/blog/2021/05/severe-vulnerabilities-patched-in-simple-301-redirects-by-betterlinks-plugin/

https://plugins.svn.wordpress.org/simple-301-redirects/trunk/readme.txt

Related Vulnerabilities

WordPress Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Vulnerability (CVE-2008-4796)

Nexus Repository Manager Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2019-11629)

WordPress Plugin Essential Addons for Elementor Security Bypass (5.7.1)

WordPress 4.0.x Cross-Site Scripting Vulnerability (4.0 - 4.0.8)

Apache HTTP Server Other Vulnerability (CVE-2003-0016)

Severity

High

Classification

CVE-2021-24352 CVE-2021-24353 CVE-2021-24354 CVE-2021-24355 CVE-2021-24356 CWE-264 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

Tags

Missing Update Authentication Bypass