CVE-2021-39320CWE-79

underConstruction <= 1.18 - Reflected Cross-Site Scripting

Medium · published September 1, 2021

CVSS v3.1
6.1
EPSS
2%
Percentile
83.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.02324 · 83.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2021-09-01T14:15Z
EPSS history
Timeline
  • 01 SEP 14:15Z
    underConstruction <= 1.18 - Reflected Cross-Site Scripting
    cvelistv5