CVE-2026-57957

Papermark through 0.22.0 contains a cross-origin resource sharing CORS misconfiguration vulnerability that allows unauthenticated remote attackers to perform credentialed cross-origin requests by exploiting the TUS-based viewer upload endpoint reflecting arbitrary request Origins with...

CVE-2026-57957: Permissive Cross-domain Policy with Untrusted Domains

Papermark through 0.22.0 contains a cross-origin resource sharing CORS misconfiguration vulnerability that allows unauthenticated remote attackers to perform credentialed cross-origin requests by exploiting the TUS-based viewer upload endpoint reflecting arbitrary request Origins with...