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CWE-791: Incomplete Filtering of Special Elements
Weakness Summary
The product receives data from an upstream component, but does not completely filter special elements before sending it to a downstream component.
- Canonical source: MITRE CWE-791 (opens in a new tab)
- Published Atomicorp CVE observations: 5
- Distinct affected products in those observations: 5
- Active Atomicorp rules associated with this weakness: 14
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
| CVE | Vulnerability | Product | Atomicorp finding | Observed rules |
|---|---|---|---|---|
| CVE-2026-47323 | Apache Camel: Camel-CXF Message Header Injection via Missing Inbound Filtering | camel | Protected by Atomicorp rules | 390719 |
| CVE-2026-86206 | N-able N-central - Access Control Bypass via Path Confusion and Forwarded Header Spoofing | N-central | Protected by Atomicorp rules | 344365 |
| CVE-2025-14731 | CTCMS Content Management System Frontend/Template Management CT_Parser.php special elements used in a template engine | ctcms | Protected by Atomicorp rules | 340014 , 340023 , 340029 , 344360 , 344361 , 344363 , 344364 , 344366 , 344370 , 393655 |
| CVE-2026-103540 | formtools.org Form Tools Client Settings Clients.class.php updateClientSettingsTab special elements in template engine | Form Tools | Protected by Atomicorp rules | 340014 , 340029 , 340193 , 344360 , 344361 , 344363 , 344364 , 344366 , 344370 , 347009 , 393655 |
| CVE-2026-78140 | Dromara UJCMS web-file-template Endpoint WebFileTemplateController.java update special elements in template engine | UJCMS | Protected by Atomicorp rules | 340014 , 340023 , 340029 , 344360 , 344361 , 344363 , 344364 , 344366 , 344370 |
Associated Atomicorp WAF Rules
| Rule | Status | Behavior |
|---|---|---|
| 340014 | Active | disruptive (deny) |
| 340023 | Active | disruptive (deny) |
| 340029 | Active | disruptive (deny) |
| 340193 | Active | disruptive (deny) |
| 344360 | Active | disruptive (deny) |
| 344361 | Active | disruptive (deny) |
| 344363 | Active | disruptive (deny) |
| 344364 | Active | disruptive (deny) |
| 344365 | Active | disruptive (deny) |
| 344366 | Active | disruptive (deny) |
| 344370 | Active | disruptive (deny) |
| 347009 | Active | disruptive (deny) |
| 390719 | Active | disruptive (deny) |
| 393655 | Active | disruptive (deny) |