CVE-2021-39320 - Vulnerability Details - OpenCVE

The underConstruction plugin <= 1.18 for WordPress echoes out the raw value of `$GLOBALS['PHP_SELF']` in the ucOptions.php file. On certain configurations including Apache+modPHP, this makes it possible to use it to perform a reflected Cross-Site Scripting attack by injecting malicious code in the request path.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.19664.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Noah Kagan

underConstruction

affected

Version	Status	Constraints
`1.18`	affected	≤ 1.18

Configuration 1 [-]

cpe:2.3:a:underconstruction_project:underconstruction:*:*:*:*:*:wordpress:*:*

No data.

No data.

Project Subscriptions

Vendors	Products
Underconstruction Project Subscribe	Underconstruction Subscribe

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://wpscan.com/vulnerability/49ae1df0-d6d2-4cbb-9a9d-bf3599429875
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39320

History

Mon, 05 May 2025 15:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2021-09-01T14:15:35.899Z

Updated: 2025-05-05T14:50:43.201Z

Reserved: 2021-08-20T00:00:00.000Z

Link: CVE-2021-39320

Vulnrichment

Updated: 2024-08-04T02:06:42.613Z

NVD

Status : Modified

Published: 2021-09-01T15:15:12.653

Modified: 2024-11-21T06:19:14.063

Link: CVE-2021-39320

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

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