CVE-2023-0831

MEDIUM 4.3

Under Construction <= 3.96 - Cross-Site Request Forgery via admin_action_ucp_dismiss_notice

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

The Under Construction plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.96. This is due to missing or incorrect nonce validation on the dismiss_notice function called via the admin_action_ucp_dismiss_notice action. This makes it possible for unauthenticated attackers to dismiss plugin notifications via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CWE	CWE-352
Vendor	webfactory
Product	under construction
Published	Jun 9, 2023
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

webfactory / Under Construction

0 ≤ 3.96

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/031a1203-6b0d-453b-be8a-12e7f55cb401?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/under-construction-page/trunk/under-construction.php?rev=2848705#L901

Credits

Ramuel Gall Alex Thomas