What’s Vulnerable › Vulnerabilities

CVE-2023-0831: Under Construction <= 3.96 - Cross-Site Request Forgery via admin_action_ucp_dismiss_notice

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-09 · updated 2026-06-17
• Weakness: CWE-352

Description

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.

Affected products

• webfactory Under Construction: through 3.96

References

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

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