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Atomicorp WAF Rule 399153

Rule Summary

  • Rule ID: 399153
  • Status: Active
  • Alert message: Atomicorp.com WAF Rules: CVE-2026-51153 Cross-site scripting in REQUEST_URI on /task/1/run (detectXSS)
  • Observed CWEs: None documented
  • Revision: 1
  • Rule severity: Critical (2)
  • Phase: 2 (request body)
  • Request surfaces: Request filename
  • Rule action: deny
  • HTTP status: 403
  • Public tags: CVE-2026-51153, XSS
  • Logging: log, auditlog

Description

This rule detects behavior identified by its current alert as “CVE-2026-51153 Cross-site scripting in REQUEST_URI on /task/1/run (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-2026-51153

Stored Cross-Site Scripting (XSS) in TaskRunHandler.post() in web/handlers/task.py in QD 20220208 through 20250803. When a task is run via /task/<taskid>/run, the handler renders task log content (logtmp) into the HTML response using Python % string formatting without HTML encoding. logtmp is populated from the exception object or from new_env.variables.log, which is attacker-controlled via the template extract_variables mechanism. A low-privileged authenticated attacker can create a crafted HAR template that extracts arbitrary HTML/JavaScript into the log variable via the api://util/unicode endpoint. When a victim triggers the task run, the embedded script executes in the victim browser within the QD application context.

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

No selected related public CVE research notes are currently published.