CVE-2026-25126

Katalog CVE

CVSS 7.1 · High EPSS 0,38%

Kerentanan Improper Input Validation pada polarlearn. Skor CVSS 3.1 7.1 (High) menurut github.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

29 Januari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.1 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation

EPSS (30 hari)

0,38% peluang dieksploitasi; lebih tinggi dari 30,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/polarnl/PolarLearn/security/advisories/GHSA-ghpx-5w2p-p3qp exploit · advisory vendor
• https://github.com/polarnl/PolarLearn/commit/e6227d94d0e53e854f6a46480db8cd1051184d41 patch