{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-25126", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-01-29T14:03:42.540Z", "datePublished": "2026-01-29T22:06:37.224Z", "dateUpdated": "2026-01-29T22:06:37.224Z"}, "containers": {"cna": {"title": "PolarLearn's unvalidated vote direction allows vote count manipulation", "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/polarnl/PolarLearn/security/advisories/GHSA-ghpx-5w2p-p3qp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/polarnl/PolarLearn/security/advisories/GHSA-ghpx-5w2p-p3qp"}, {"name": "https://github.com/polarnl/PolarLearn/commit/e6227d94d0e53e854f6a46480db8cd1051184d41", "tags": ["x_refsource_MISC"], "url": "https://github.com/polarnl/PolarLearn/commit/e6227d94d0e53e854f6a46480db8cd1051184d41"}], "affected": [{"vendor": "polarnl", "product": "PolarLearn", "versions": [{"version": "< 0-PRERELEASE-15", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-01-29T22:06:37.224Z"}, "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."}], "source": {"advisory": "GHSA-ghpx-5w2p-p3qp", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-25126", "lastModified": "2026-01-29T22:15:56.423", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-01-29T22:15:56.423", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/polarnl/PolarLearn/commit/e6227d94d0e53e854f6a46480db8cd1051184d41"}, {"source": "security-advisories@github.com", "url": "https://github.com/polarnl/PolarLearn/security/advisories/GHSA-ghpx-5w2p-p3qp"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-01-30T08:42:30.574299+00:00", "updated": "2026-01-30T08:42:30.574326+00:00", "vendors": ["polarnl", "polarnl$PRODUCT$polarlearn"]}