CVE-2021-39320

MediumCVSS 6.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published
Sep 1, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-39320: Medium severity, CVSS 6.1 | Vulnix