CVE-2021-39320 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1