CVE-2021-24191 json
WP Maintenance Mode & Site Under Construction < 1.8.2 - Arbitrary Plugin Installation/Activation via Low Privilege User
published 2021-05-14 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11105
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
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.
Patch / fix
- wpshopmart coming_soon_page_&_maintenance_mode 1.8.2
Exploit prediction
1.31% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/74889e29-5349-43d1-baf5-1622493be90c referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- wp-buy WP Maintenance Mode & Site Under Construction
Classification
- Weakness
-
- CWE-285 Improper Authorization
- Technology feeds
References
-
wpscan.com
/vulnerability/74889e29-5349-43d1-baf5-1622493be90c
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24191
- NVD CVE-2021-24191
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