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CWE-942: Permissive Cross-domain Security Policy with Untrusted Domains

Weakness Summary

The product uses a web-client protection mechanism such as a Content Security Policy (CSP) or cross-domain policy file, but the policy includes untrusted domains with which the web client is allowed to communicate.

  • Canonical source: MITRE CWE-942 (opens in a new tab)
  • Published Atomicorp CVE observations: 2
  • Distinct affected products in those observations: 2
  • Active Atomicorp rules associated with this weakness: 11

Atomicorp Research Context

Atomicorp has published CVE-specific research observations associated with this weakness category. Each linked CVE page states whether the tested request was detected or blocked and is the authoritative customer-facing finding.

The CVEs and rules shown here are selected published examples, not a complete list of Atomicorp protections. If a CWE, CVE, or rule is absent from this page, no conclusion should be drawn about whether Atomicorp protects against that weakness or attack method.

A CWE describes a class of software weakness. It does not identify one exploit request, and association with a CWE does not mean that every vulnerability or exploitation path in that category is detected or blocked.

Selected Published CVE Observations

CVEVulnerabilityProductAtomicorp findingObserved rules
CVE-2026-34449SiYuan: Cross-Origin RCE via Permissive CORS Policy and JavaScript Snippet InjectionsiyuanAttack Blocked by Atomicorp340014 , 340023 , 340029 , 344360 , 344361 , 344363 , 344364 , 344366 , 344370 , 345240 , 393655
CVE-2026-53649Joro: Unauthenticated Cross-Origin Plugin Upload Leads to RCEjoroAttack Blocked by Atomicorp340014 , 340023 , 344360 , 344361 , 344363 , 344364 , 344366 , 344370 , 393655

Associated Atomicorp WAF Rules

RuleStatusBehavior
340014Activedisruptive (deny)
340023Activedisruptive (deny)
340029Activedisruptive (deny)
344360Activedisruptive (deny)
344361Activedisruptive (deny)
344363Activedisruptive (deny)
344364Activedisruptive (deny)
344366Activedisruptive (deny)
344370Activedisruptive (deny)
345240Activedisruptive (deny)
393655Activedisruptive (deny)