WP Maintenance Mode & Site Under Construction < 1.8.2 - Missing Authorization to Arbitrary Plugin Installation/Activation

Improper Authorization
CVE CVE-2021-24191
CVSS High (8.8)
Publicly Published April 22, 2021
Last Updated January 22, 2024
Researcher Bugbang
Description

Low privileged users can use the AJAX action 'cp_plugins_do_button_job_later_callback' in the WP Maintenance Mode & Site Under Construction WordPress plugin before 1.8.2, to install any plugin (including a specific version) from the WordPress repository, as well as activate arbitrary plugin from then blog, which helps attackers install vulnerable plugins and could lead to more critical vulnerabilities like RCE.

References

1 affected software package

Software Type Plugin
Software Slug wp-maintenance-mode-site-under-construction (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.8.2
Patched Version
  • 1.8.2
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