WP Maintenance Mode & Site Under Construction < 1.8.2 - Arbitrary Plugin Installation/Activation via Low Privilege User
Priority MEDIUM 41CWE-285Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-285.
Summary
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.
Why it matters now
EPSS 0.01311 70th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed WP Maintenance Mode & Site Under Construction (wp-buy): 1.8.2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| wp-buy | WP Maintenance Mode & Site Under Construction | 1.8.2 to before 1.8.2 | 1.8.2 | Patch available | CNA |
- WP Maintenance Mode & Site Under Construction Vendorwp-buy Affected 1.8.2 to before 1.8.2 Fixed in 1.8.2 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wpshopmart:coming_soon_page_\&_maintenance_mode:*:*:*:*:*:wordpress:*:* | before 1.8.2 | Vulnerable | wpshopmart |
- cpe:2.3:a:wpshopmart:coming_soon_page_\&_maintenance_mode:*:*:*:*:*:wordpress:*:* Versions before 1.8.2 Vulnerable ·wpshopmart
Remediation
- Fix · CNA WP Maintenance Mode & Site Under Construction (wp-buy) Fixed in 1.8.2
Timeline
- 2026-10-02 Threatist record created from CVE-2021-24191
- 2026-10-03 Alias added: GHSA-cpf3-gq5c-48p5
References
More wp-buy vulnerabilities
- TI-2022-03943 Login as User or Customer < 3.3 - Unauthenticated Privilege Escalation to Admin CVSS 3.1CRITICAL 9.8
- TI-2024-06199 WP Content Copy Protection & No Right Click (premium) < 15.3 - Open Redirect CVSS 3.1MEDIUM 6.1
- TI-2023-06631 Login as User or Customer <= 3.8 - Admin Account Takeover CVSS 3.1MEDIUM 4.9
- TI-2024-06202 WP Content Copy Protection & No Right Click (premium) <= 15.0 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
- TI-2023-28136 WordPress Login as User or Customer plugin <= 3.8 - Unauthenticated Account Takeover vulnerability CVSS 3.1CRITICAL 9.8
- TI-2024-36323 WordPress Limit Login Attempts plugin <= 5.5 - SQL Injection vulnerability CVSS 3.1CRITICAL 9.3
Sources
- CVE-2021-24191 · CVE Program
- CVE-2021-24191 · NVD
- FIRST EPSS
- GHSA-cpf3-gq5c-48p5 · GitHub Advisory Database · CC BY 4.0
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