Atomicorp WAF Rule 399069

Rule Summary

• Rule ID: 399069
• Status: Active
• Alert message: Atomicorp.com WAF Rules: CVE-2026-54066 Path traversal (relative) in REQUEST_URI on /assets (rx)
• Observed CWEs: CWE-20 (1), CWE-306 (1), CWE-434 (1)
• Revision: 1
• Rule severity: Critical (2)
• Phase: 2 (request body)
• Request surfaces: Request filename
• Rule action: deny
• HTTP status: 403
• Public tags: CVE-2026-54066, LFI
• Logging: log, auditlog

Description

This rule detects behavior identified by its current alert as “CVE-2026-54066 Path traversal (relative) in REQUEST_URI on /assets (rx)” 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-2026-54066

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the patch for CVE-2026-41894 (“Path Traversal via Double URL Encoding”) sanitized the /export/ route but the identical root cause remains in the /assets/*path route. In publish mode (anonymous read-only HTTP endpoint, default port 6808), an unauthenticated remote attacker can read arbitrary files inside WorkspaceDir — including conf/conf.json (which contains the AccessAuthCode SHA256 hash, API token, and sync keys), temp/siyuan.db, temp/blocktree.db, and siyuan.log — by double-URL-encoding .. segments. This vulnerability is fixed in 3.7.0.

• Association: The rule references CVE-2026-54066 in its alert message and tag.
• CVE Record (opens in a new tab)
• NVD (opens in a new tab)

Selected Related CVEs

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

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.