underConstruction < 1.21 - Admin+ Stored Cross-Site Scripting
Priority LOW 23CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
The underConstruction WordPress plugin before 1.21 does not sanitise or escape the "Display a custom page using your own HTML" setting before outputting it, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiletred_html capability is disallowed.
Why it matters now
EPSS 0.00588 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed underConstruction (Unknown): 1.21
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 |
|---|---|---|---|---|---|
| Unknown | underConstruction | 1.21 to before 1.21 | 1.21 | Patch available | CNA |
- underConstruction VendorUnknown Affected 1.21 to before 1.21 Fixed in 1.21 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:underconstruction_project:underconstruction:*:*:*:*:*:wordpress:*:* | before 1.21 | Vulnerable | Underconstruction Project |
- cpe:2.3:a:underconstruction_project:underconstruction:*:*:*:*:*:wordpress:*:* Versions before 1.21 Vulnerable ·Underconstruction Project
Remediation
- Fix · CNA underConstruction (Unknown) Fixed in 1.21
Timeline
- 2026-10-02 Threatist record created from CVE-2022-1896
- 2026-10-03 Alias added: GHSA-62wc-7chw-p6cr
References
More Underconstruction Project Underconstruction vulnerabilities
- TI-2021-16692 underConstruction <= 1.18 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
- TI-2013-02360 Cross-site request forgery (CSRF) vulnerability in the underConstruction plugin before… CVSS 2.0MEDIUM 6.8
- TI-2022-01755 underConstruction < 1.20 - Construction Mode Deactivation via CSRF CVSS 3.1MEDIUM 4.3
Sources
- CVE-2022-1896 · CVE Program
- CVE-2022-1896 · NVD
- FIRST EPSS
- GHSA-62wc-7chw-p6cr · 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