PT-2026-59120 — Pypi Django-Unicorn

PT-2026-59120 · Pypi · Django-Unicorn

Published

2026-07-13

Updated

2026-07-13

CVSS v3.1

5.3

Medium

Vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

Component state manipulation is possible in django-unicorn due to missing access control checks during property updates and method calls. An attacker can bypass the intended is public protection to modify internal attributes such as template name or trigger protected methods.

Vulnerability Details: Component Access Control Bypass

Security analysis identified that the framework fails to enforce visibility boundaries defined by is public within the action parsers. Specifically, the logic in set property value() and call method name() utilizes getattr and setattr directly on component instances without verifying if the target attribute or method is explicitly marked as public.

Vulnerability resides in:

src/django unicorn/views/action parsers/call method.py
src/django unicorn/views/action parsers/utils.py

While Django's template engine restricts rendering to registered directories, an unauthorized user can still force a component to render sensitive templates (e.g., admin layouts) from other installed applications or reset the component state by invoking the internal reset() method.

Proof of Concept (PoC)

Attacker can overwrite the template name attribute by sending a crafted JSON payload to the message endpoint:

Construct a payload targeting a protected attribute:

json

{
 "actionQueue": [
  {
   "type": "syncInput",
   "payload": { "name": "template name", "value": "admin/base.html" }
  }
 ],
 "data": {},
 "meta": "<checksum of empty dict>"
}

The server-side component updates its internal state: self.template name = "admin/base.html".
Subsequent re-rendering displays the content of the targeted template, bypassing intended component logic.

Impact

Low severity. The risk is limited to unauthorized manipulation of component state and rendering of existing templates within the application's configured template directories. Remote Code Execution (RCE) is not possible via this vector.

Fix

Found an issue in the description? Have something to add? Feel free to write us 👾

dbugs@ptsecurity.com

Related Identifiers

PYSEC-2026-2451

Affected Products

Django-Unicorn