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CVE-2022-1896

underConstruction < 1.21 - Admin+ Stored Cross-Site Scripting

MEDIUM
4.8
CVSS Score
Published: June 20, 2022 at 10:26 AM UTC
Updated: June 17, 2026 at 04:23 AM UTC
1 product affected across 1 vendorUnderconstruction

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Severity
MEDIUM4.8
Exploit prediction
EPSS 0.6%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Underconstruction· Underconstruction Projectwordpress-plugin
95%
v < 1.21
Affected range stops below 1.21, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://wpscan.com/vulnerability/3e8bd875-2435-4a15-8ee8-8a00882b499c

CVSS

4.8MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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