Under Construction <= 3.96 - Cross-Site Request Forgery via admin_action_ucp_dismiss_notice
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-352.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| webfactory | Under Construction | up to 3.96 | — | No fix listed | CNA |
- Under Construction Vendorwebfactory Affected up to 3.96 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:webfactoryltd:under_construction:*:*:*:*:*:wordpress:*:* | up to 3.96 | Vulnerable | webfactory |
- cpe:2.3:a:webfactoryltd:under_construction:*:*:*:*:*:wordpress:*:* Versions up to 3.96 Vulnerable ·webfactory
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-0831
- 2026-10-03 Alias added: GHSA-fvq4-vxm4-wp27
References
More webfactory Under Construction vulnerabilities
- TI-2023-00788 Under Construction <= 3.96 - Cross-Site Request Forgery via admin_action_install_weglot CVSS 3.1MEDIUM 4.3
Sources
- CVE-2023-0831 · CVE Program
- CVE-2023-0831 · NVD
- FIRST EPSS
- GHSA-fvq4-vxm4-wp27 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences