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.
History

Wed, 02 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Title Stored Cross‑Site Scripting via Task Run Logging in QD

Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 01 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Qd
Qd qd
Vendors & Products Qd
Qd qd

Mon, 31 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
Title Stored Cross‑Site Scripting via Task Run Logging in QD
Weaknesses CWE-79

Mon, 31 Aug 2026 15:45:00 +0000

Type Values Removed Values Added
Description 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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-08-31T00:00:00.000Z

Updated: 2026-09-01T15:21:09.258Z

Reserved: 2026-06-07T00:00:00.000Z

Link: CVE-2026-51153

cve-icon Vulnrichment

Updated: 2026-09-01T15:21:02.630Z

cve-icon NVD

Status : Deferred

Published: 2026-08-31T16:18:34.807

Modified: 2026-09-01T16:16:57.920

Link: CVE-2026-51153

cve-icon Redhat

No data.