QD up to 20250803 Task web/handlers/task.py TaskRunHandler.post __log__ cross site scripting

Summaryinfo

A vulnerability was found in QD up to 20250803 and classified as problematic. This affects the function TaskRunHandler.post of the file web/handlers/task.py of the component Task Handler. Executing a manipulation of the argument __log__ can lead to cross site scripting. This vulnerability is handled as CVE-2026-51153. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in QD up to 20250803. It has been declared as problematic. This vulnerability affects the function TaskRunHandler.post of the file web/handlers/task.py of the component Task Handler. The manipulation of the argument __log__ with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

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.

The advisory is available at qd-today.github.io. This vulnerability was named CVE-2026-51153 since 06/07/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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• QD

Version

• 20250803

CPE 2.3info

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CPE 2.2info

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