CVE-2026-25126

{"id": "CVE-2026-25126", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-25126", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-30T14:37:03.172573Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 4.2, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "polarnl", "product": "PolarLearn", "versions": [{"status": "affected", "version": "< 0-PRERELEASE-15"}]}]}], "published": "2026-01-29T22:15:56.423", "references": [{"url": "https://github.com/polarnl/PolarLearn/commit/e6227d94d0e53e854f6a46480db8cd1051184d41", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/polarnl/PolarLearn/security/advisories/GHSA-ghpx-5w2p-p3qp", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "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\u2019s `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."}, {"lang": "es", "value": "PolarLearn es un programa de aprendizaje gratuito y de c\u00f3digo abierto. Antes de la versi\u00f3n 0-PRERELEASE-15, la ruta de la API de votaci\u00f3n ('POST /api/v1/forum/vote') conf\u00eda en el valor 'direction' del cuerpo JSON sin validaci\u00f3n en tiempo de ejecuci\u00f3n. Los tipos de TypeScript no se aplican en tiempo de ejecuci\u00f3n, por lo que un atacante puede enviar cadenas arbitrarias (por ejemplo, 'x') como 'direction'. En el flujo descendente ('VoteServer') trata cualquier valor que no sea 'up' y no sea 'null' como un voto negativo y persiste el valor inv\u00e1lido en 'votes_data'. Esto puede ser explotado para eludir la l\u00f3gica de negocio prevista. La versi\u00f3n 0-PRERELEASE-15 corrige la vulnerabilidad."}], "lastModified": "2026-06-17T10:24:09.197", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:polarlearn:polarlearn:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "98DA1036-1EFB-46E7-9C83-425B1C6E6F23"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}