Exploit for CVE-2026-25126

CVE-2026-25126: PolarLearn Vote Count Manipulation Research...

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" ...

EUVD-2026-4937

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" ...

CVE-2026-25126

PolarLearn prior to version 0-PRERELEASE-15 is vulnerable in the vote API at POST /api/v1/forum/vote, where the request body field direction is not validated at runtime. This allows sending arbitrary strings; downstream VoteServer treats any non-up and non-null value as a downvote and stores the ...