Description

PolarLearn is a free and open-source learning program. Prior to version 0-PRERELEASE-15, the vote API route (`POST /api/v1/forum/vote`) trusts the JSON body’s `direction` value without runtime validation. TypeScript types are not enforced at runtime, so an attacker can send arbitrary strings (e.g., `"x"`) as `direction`. Downstream (`VoteServer`) treats any non-`"up"` and non-`null` value as a downvote and persists the invalid value in `votes_data`. This can be exploited to bypass intended business logic. Version 0-PRERELEASE-15 fixes the vulnerability.

INFO

Published Date :

2026-01-29T22:06:37.224Z

Last Modified :

2026-02-02T16:34:07.949Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-25126 vulnerability.

Vendors Products
Polarlearn
  • Polarlearn
Polarnl
  • Polarlearn
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-25126.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact