CVE Explorer

CVE-2026-25126

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 busin

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4b04309c1fa7985e4407c91875ec59306dfa4bdd711a42c8af9d44b0c5d3a870

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"PolarLearn","vendor":"polarnl","versions":[{"status":"affected","version":"< 0-PRERELEASE-15"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:2702fb028101a9e0238ae58de87db7507638fb3897957ca7084f80857e019069 · sha256:161bab497a0a7d5b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"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"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:2702fb028101a9e0238ae58de87db7507638fb3897957ca7084f80857e019069 · sha256:161bab497a0a7d5b… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:2702fb028101a9e0238ae58de87db7507638fb3897957ca7084f80857e019069 · sha256:161bab497a0a7d5b… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/polarnl/PolarLearn/commit/e6227d94d0e53e854f6a46480db8cd1051184d41","tags":["x_refsource_MISC"],"url":"https://github.com/polarnl/PolarLearn/commit/e6227d94d0e53e854f6a46480db8cd1051184d41"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:2702fb028101a9e0238ae58de87db7507638fb3897957ca7084f80857e019069 · sha256:161bab497a0a7d5b… · /containers/cna/references/1

{"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"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:2702fb028101a9e0238ae58de87db7507638fb3897957ca7084f80857e019069 · sha256:161bab497a0a7d5b… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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