CVE-2026-25126: falha de alta gravidade em polarnl PolarLearn
PolarLearn's unvalidated vote direction allows vote count manipulation
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.1epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Produtos afetados
polarnl · PolarLearnCVEs relacionadas — polarnl PolarLearn
No mesmo produto, das mais perigosas para as menos.
CVE-2026-25222MEDIUMPolarLearn Affected by User Enumeration via Argon2 Timing Attack on Sign-In EndpointEPSS 0.5%CVE-2026-25885CRITICALPolarLearn allows Unauthenticated WebSocket access allows subscribing to and posting in arbitrary group chatsEPSS 0.3%CVE-2026-35610HIGHPolarLearn has a Server Action Admin Bypass in Account Management ActionsEPSS 0.3%CVE-2026-39322CRITICALPolarLearn: Any password authenticates banned accounts and grants API accessEPSS 0.2%CVE-2026-25221LOWPolarLearn has Multiple Login CSRFs via Missing OAuth state Parameter (GitHub & Google)EPSS 0.2%