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Atomicorp WAF Rule 399053

Rule Summary

  • Rule ID: 399053
  • Status: Active
  • Alert message: Atomicorp.com WAF Rules: CVE-2021-42053 Cross-site scripting in REQUEST_BODY on /unicorn/message/todo (detectXSS)
  • Observed CWEs: CWE-79 (1)
  • Revision: 1
  • Rule severity: Critical (2)
  • Phase: 2 (request body)
  • Request surfaces: Request filename
  • Rule action: deny
  • HTTP status: 403
  • Public tags: CVE-2021-42053, XSS
  • Logging: log, auditlog

Description

This rule detects behavior identified by its current alert as “CVE-2021-42053 Cross-site scripting in REQUEST_BODY on /unicorn/message/todo (detectXSS)” in the request filename. It evaluates during the request body phase and denies matching traffic with HTTP status 403.

CVEs Referenced by This Rule

The current ModSecurity rule metadata explicitly names the following CVEs. These references explain the rule author’s association; they do not claim that the rule is limited to these vulnerabilities or that this is an exhaustive coverage list.

CVE-2021-42053

The Unicorn framework through 0.35.3 for Django allows XSS via component.name.

This is a selected list of documented research observations, not an exhaustive coverage matrix. Absence of a CVE does not imply absence of protection.

CVEVulnerabilityProductCVSSSeverity
CVE-2021-42053django-unicorn 0.35.3 - Stored Cross-Site Scripting (XSS)unicorn5.4 (v3.1)Medium

Observed CWEs

These CWEs are recorded on published CVEs in the selected observations associated with this rule. They are observational relationships, not a claim that the rule universally blocks every vulnerability assigned to a CWE.

CWERelated Published CVEs
CWE-79CVE-2021-42053