ByteOS Network

NVD Vulnerability Details :

CVE-2026-25126

Awaiting Analysis

Source-security-advisories@github.com

Published At-29 Jan, 2026 | 22:15

Updated At-04 Feb, 2026 | 16:34

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	7.1	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Type: Secondary

Version: 3.1

Base score: 7.1

Base severity: HIGH

Vector:

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Weaknesses

CWE ID	Type	Source
CWE-20	Primary	security-advisories@github.com

CWE ID: CWE-20

Type: Primary

Source: security-advisories@github.com

References

Hyperlink	Source	Resource
https://github.com/polarnl/PolarLearn/commit/e6227d94d0e53e854f6a46480db8cd1051184d41	security-advisories@github.com	N/A
https://github.com/polarnl/PolarLearn/security/advisories/GHSA-ghpx-5w2p-p3qp	security-advisories@github.com	N/A

Hyperlink: https://github.com/polarnl/PolarLearn/commit/e6227d94d0e53e854f6a46480db8cd1051184d41

Source: security-advisories@github.com

Resource: N/A

Hyperlink: https://github.com/polarnl/PolarLearn/security/advisories/GHSA-ghpx-5w2p-p3qp

Source: security-advisories@github.com

Resource: N/A

CISA Catalog

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Change History