CVE-2021-24191

WP Maintenance Mode & Site Under Construction < 1.8.2 - Arbitrary Plugin Installation/Activation via Low Privilege User

HIGH
8.8
CVSS Score
Published: May 14, 2021 at 11:38 AM UTC
Updated: June 17, 2026 at 03:39 AM UTC
2 products affected across 2 vendorsComing Soon Page & Maintenance ModeComing Soon Page Maintenance Mode

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Severity
HIGH8.8
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.8.2
Affected range stops below 1.8.2, so it looks safe — our inference, not a vendor statement
v < 1.8.2
Affected range stops below 1.8.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-285NVD-CWE-Other

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